3262 lines
148 KiB
JavaScript
3262 lines
148 KiB
JavaScript
module.exports = {
|
||
'locale': {
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'locale': 'el_GR'
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},
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'anagrams' : {
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'description': `### anagrams
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||
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⚠️ **ΠΡΟΣΟΧΗ**: Ο χρόνος εκτέλεσης αυτής της συνάρτησης αυξάνει εκθετικά για κάθε χαρακτήρα. Οτιδήποτε περισσότερο από 8 με 10 χαρακτήρες θα κολλήσει το browser ενώ προσπαθεί να επιλύσει όλους τους πιθανούς συνδυασμούς.
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Παράγει όλους τους αναγραμματισμούς μιας συμβολοσειράς (περιλαμβάνει διπλοτυπίες).
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Χρησιμοποιεί αναδρομή.
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Για κάθε γράμμα στη συμβολοσειρά, δημιουργούνται όλοι οι μερικοί αναγραμματισμοί για τα υπόλοιπά του γράμματα.
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Χρησιμοποιείται η \`Array.map()\` για να συνδυαστεί κάθε γράμμα με κάθε μερικό αναγραμματισμό, έπειτα η \`Array.reduce()\` για να συνδυάσει όλους τους αναγραμματισμούς σε ένα πίνακα.
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||
Οι βασικές περιπτώσεις είναι συμβολοσειρές με \`length\` ίσο με \`2\` ή \`1\`.
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||
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||
`,
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||
'comments': [`// ['abc','acb','bac','bca','cab','cba']`],
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||
'hash': 'db57928e845bb3ddd75803bc9fb56e35682f0db49c44fc5bf49ce92ed7823ec2'
|
||
},
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||
'arrayToHtmlList' : {
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||
'description': `### arrayToHtmlList
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||
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||
Μετατρέπει τα στοιχεία ενός πίνακα σε ετικέτες \`<li>\` και τις προσθέτει στο τέλος της λίστα με το δεδομένο id.
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||
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Χρησιμοποιείται η \`Array.map()\` και η \`document.querySelector()\` για να δημιουργηθεί μια λίστα με ετικέτες html.
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||
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||
`,
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||
'comments': [],
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||
'hash': 'cd04af6fa6e404bd23fe048eaa3487cd3c6ca41510a1fa655562f1f021b6ea79'
|
||
},
|
||
'ary' : {
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||
'description': `### ary
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||
|
||
Δημιουργεί μια συνάρτηση που δέχεται μέχρι \`n\` ορίσματα, αγνοώντας οποιαδήποτε επιπλέον ορίσματα.
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Καλείται η δεδομένη συνάρτηση, \`fn\`, χρησιμοποιώντας μέχρι \`n\` ορίσματα, κάνοντας χρήση της \`Array.slice(0,n)\` και του τελεστή spread (\`...\`).
|
||
|
||
`,
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||
'comments': [`// [6, 8, 10]`],
|
||
'hash': '4f3141d750bb65b9ea7749e1d87c56e20b175471218daad82a9d39b85c83709c'
|
||
},
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||
'atob' : {
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||
'description': `### atob
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||
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||
Αποκωδικοποιεί μια συμβολοσειρά δεδομένων που έχει κωδικοποιηθεί με κωδικοποίηση base-64.
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Δημιουργείται ένα \`Buffer\` για τη δεδομένη συμβολοσειρά με κωδικοποίηση base-64 και χρησιμοποιείται η \`Buffer.toString('binary')\` για να επιστρέψει την αποκωδικοποιημένη συμβολοσειρά.
|
||
|
||
`,
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||
'comments': [`// 'foobar'`],
|
||
'hash': '63d1284df5e152ae1017e1345be0afdfe537b8958955e8d48b1dc09096c0ddbb'
|
||
},
|
||
'attempt' : {
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||
'description': `### attempt
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||
|
||
Επιχειρεί να καλέσει τη συνάρτηση με τα δεδομένα ορίσματα, επιστρέφοντας είτε το αποτέλεσμα ή το αντικείμενο σφάλματος.
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||
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Χρησιμοποιείται ένα block \`try... catch\` για να επιστραφεί είτε το αποτέλεσμα της συνάρτησης ή ένα κατάλληλο σφάλμα.
|
||
|
||
`,
|
||
'comments': [`// elements = []`],
|
||
'hash': 'af5e1ebd6ac8b69a8bb7ae4411181e693e1152460d749b00e08ebb8a0eb0738d'
|
||
},
|
||
'average' : {
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||
'description': `### average
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||
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||
Επιστρέφει τη μέση τιμή δυο ή περισσότερων αριθμών.
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||
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Χρησιμοποιείται η \`Array.reduce()\` για να προσθέσει κάθε τιμή σε ένα αθροιστή με αρχική τιμή το \`0\` και γίνεται διαίρεση με το \`length\` του πίνακα.
|
||
|
||
`,
|
||
'comments': [`// 2`,`// 2`],
|
||
'hash': '9ae903bc29b9075c9326bbceb0682c697cb73ddb632a434fe8035fd2a48e54e3'
|
||
},
|
||
'averageBy' : {
|
||
'description': `### averageBy
|
||
|
||
Επιστρέφει τη μέση τιμή ενός πίνακα, αφού γίνει map κάθε στοιχείο σε μια τιμή χρησιμοποιώντας τη δεδομένη συνάρτηση.
|
||
|
||
Χρησιμοποιείται η \`Array.map()\` για να γίνει map κάθε στοιχείο στην τιμή που επιστρέφεται από την \`fn\`, η \`Array.reduce()\` για να προσθέσει κάθε τιμή σε ένα αθροιστή με αρχική τιμή το \`0\` και γίνεται διαίρεση με το \`length\` του πίνακα.
|
||
|
||
`,
|
||
'comments': [`// 5`,`// 5`],
|
||
'hash': 'cc0fc4d2586eed04909cbd7912008273e04b988ee41897517cf9c39f21c16d72'
|
||
},
|
||
'bind' : {
|
||
'description': `### bind
|
||
|
||
Δημιουργεί μία συνάρτηση που καλεί την \`fn\` με ένα δεδομένο context, προαιρετικά προσθέτονας οποιεσδήποτε επιπλέον παραμέτρους δίνονται στην αρχή των ορισμάτων.
|
||
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||
Επιστρέφει ένα \`function\` που χρησιμοποιεί τη \`Function.apply()\` για να συνδέσει το δεδομένο \`context\` στην \`fn\`.
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Χρησιμοποιείται η \`Array.concat()\` για να προσθέσει στην αρχή των ορισμάτων οποιεσδήποτε επιπλέον παραμέτρους δίνονται.
|
||
|
||
`,
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||
'comments': [`// 'hi fred!'`],
|
||
'hash': '559b6272a1b9c506513617f815f128495feb27ad9b3fa807c3cdded9aae35e9d'
|
||
},
|
||
'bindAll' : {
|
||
'description': `### bindAll
|
||
|
||
Συνδέει μεθόδους ενός αντικειμένου με το ίδιο το αντικείμενο, αντικαθιστώντας την υπάρχουσα μέθοδο.
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||
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||
Χρησιμοποιείται η \`Array.forEach()\` για να επιστρέψει ένα \`function\` που χρησιμοποιεί τη \`Function.apply()\` για να εφαρμόσει το δεδομένο context (\`obj\`) στην \`fn\` για κάθε συνάρτηση που έχει οριστεί.
|
||
|
||
`,
|
||
'comments': [`// Καταγράφει 'clicked docs' όταν γίνει κλικ.`],
|
||
'hash': '00a2fdef0a5cfdf4e4e634937306e9f9851d11491f406e3ea209d9d0141bacae'
|
||
},
|
||
'bindKey' : {
|
||
'description': `### bindKey
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||
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||
Δημιουργεί μία συνάρτηση που καλεί τη μέθοδο στο δεδομένο key ενός αντικειμένου, προαιρετικά προσθέτονας οποιεσδήποτε επιπλέον παραμέτρους δίνονται στην αρχή των ορισμάτων.
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||
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Επιστρέφει ένα \`function\` που χρησιμοποιεί τη \`Function.apply()\` για να συνδέσει το \`context[fn]\` στο \`context\`.
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||
Χρησιμοποιείται η \`Array.concat()\` για να προσθέσει στην αρχή των ορισμάτων οποιεσδήποτε επιπλέον παραμέτρους δίνονται.
|
||
|
||
`,
|
||
'comments': [`// 'hi fred!'`],
|
||
'hash': 'ef7847ba9292b447909df4a34aba1f9227c270e53ce93c4ef18165657f03b92a'
|
||
},
|
||
'bottomVisible' : {
|
||
'description': `### bottomVisible
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||
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||
Επιστρέφει \`true\` αν το κάτω μέρος της σελίδας είναι ορατό, αλλιώς \`false\`.
|
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Χρησιμοποιούνται τα \`scrollY\`, \`scrollHeight\` και \`clientHeight\`για να προσδιοριστεί αν το κάτω μέρος της σελίδας είναι ορατό.
|
||
|
||
`,
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||
'comments': [`// true`],
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||
'hash': '50d33c2e1ebb78ca9d9f1c288848082d590aded131aea41f86164af1050204ef'
|
||
},
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||
'btoa' : {
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'description': `### btoa
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Δημιουργεί μια συμβολοσειρά ASCII με κωδικοποίηση base-64 από ένα αντικειμένο String στο οποίο κάθε χαρακτήρας αποτελεί ένα byte δυαδικών δεδομένων.
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Δημιουρείται ένα \`Buffer\` για τη δεδομένη συμβολοσειρά με δυαδική κωδικοποίηση και χρησιμοποιείται η \`Buffer.toString('base64')\` για να επιστρέψει την κωδικοποιημένη συμβολοσειρά.
|
||
|
||
`,
|
||
'comments': [`// 'Zm9vYmFy'`],
|
||
'hash': '6d50b12885716eddce47396bb755e6d3facf8dff786e6978b5402ead8f0e6990'
|
||
},
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||
'byteSize' : {
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||
'description': `### byteSize
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||
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Επιστρέφει το μήκος μίας συμβολοσειράς σε byte.
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||
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Μετατρέπει τη δεδομένη συμβολοσειρά σε ένα [αντικείμενο \`Blob\`](https://developer.mozilla.org/en-US/docs/Web/API/Blob) και βρίσκει το \`size\` της.
|
||
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||
`,
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||
'comments': [`//developer.mozilla.org/en-US/docs/Web/API/Blob) και βρίσκει το \`size\` της.`,`// 4`,`// 11`],
|
||
'hash': '1848a81b6d95cc66138d877364bcbb3de7b89ebc4d2031348aa95345602f4a60'
|
||
},
|
||
'call' : {
|
||
'description': `### call
|
||
|
||
Δεδομένου ενός key και ενός συνόλου ορισμάτων, καλούνται με ένα δεδομένο context. Κυρίως χρήσιμο σε σύνθεση συναρτήσεων.
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||
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||
Χρησιμοποιείται ένα closure για να κληθεί ένα αποθηκευμένο key με τα αποθηκευμένα ορίσματα.
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||
|
||
`,
|
||
'comments': [`//[ 2, 4, 6 ]`,`//[ 2, 4, 6 ]`],
|
||
'hash': '732d63737f940a76c33a42ae3a1dcbf72b93149f57e14e34e301dad7ce245236'
|
||
},
|
||
'capitalize' : {
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||
'description': `### capitalize
|
||
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||
Μετατρέπει το πρώτο γράμμα μιας συμβολοσειράς σε κεφαλαίο.
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||
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Χρησιμοποιείται αποδόμηση πίνακα και η μέθοδος \`String.toUpperCase()\` για να μετατραπεί το πρώτο γράμμα σε κεφαλαίο, η εντολή \`...rest\` για να ληφθούν τα υπόλοιπα στοιχεία του πίνακα εκτός του πρώτου γράμματος και τέλος η μέθοδος \`Array.join('')\` για να μετατραπεί και πάλι σε συμβολοσειρά.
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Αν παραληφθεί η παράμετρος \`lowerRest\`, τα υπόλοιπα γράμματα παραμένουν ως έχουν, αν όμως τεθεί \`true\` μετατρέπονται σε πεζά.
|
||
|
||
`,
|
||
'comments': [`// 'FooBar'`,`// 'Foobar'`],
|
||
'hash': '225acdf8e1cbce3dba7ac8591de9d6051165523bf78e1c9b37954a9c5a267252'
|
||
},
|
||
'capitalizeEveryWord' : {
|
||
'description': `### capitalizeEveryWord
|
||
|
||
Μετατρέπει το πρώτο γράμμα κάθε λέξης μιας συμβολοσειράς σε κεφαλαίο.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`String.replace()\` για να βρεθεί το πρώτο γράμμα κάθε λέξης και η μέθοδος \`String.toUpperCase()\` για να το μετατρέψει σε κεφαλαίο.
|
||
|
||
`,
|
||
'comments': [`// 'Hello World!'`],
|
||
'hash': 'f1ce5987c4180d806c65b415f913bb0a2dcc708ad7a5249d31f9e52d8cba30e3'
|
||
},
|
||
'castArray' : {
|
||
'description': `### castArray
|
||
|
||
Μετατρέπει τη δεδομένη τιμή σε πίνακα, αν δεν είναι ήδη πίνακας.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.isArray()\` για να ελεγχθεί αν η μεταβλητή \`val\` είναι πίνακας και ανάλογα επιστρέφεται όπως είναι ή ως πίνακας ενός στοιχείου.
|
||
|
||
`,
|
||
'comments': [`// ['foo']`,`// [1]`],
|
||
'hash': 'a43c8982dc21f32869d600d175ddcc0b56a24da09a629f6f3be5167bb753e189'
|
||
},
|
||
'chainAsync' : {
|
||
'description': `### chainAsync
|
||
|
||
Συνδέει σειριακά ασύγχρονες συναρτήσεις.
|
||
|
||
Διατρέχει ένα πίνακα συναρτήσεων που περιέχει ασύγχρονα γεγονότα, καλώντας τη \`next\` όταν ένα ασύγχρονο γεγονός έχει ολοκληρωθεί.
|
||
|
||
`,
|
||
'comments': [],
|
||
'hash': '8b6d33fba612cac3b4e97a42fc7bfaa5b52fc96a47d6e580528f6aeae789606d'
|
||
},
|
||
'chunk' : {
|
||
'description': `### chunk
|
||
|
||
Μετατρέπει ένα πίνακα σε μικρότερους πίνακες με το καθορισμένο μέγεθος.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.from()\` για να δημιουργηθεί ένας νέος πίνακας, που χωράει τον αριθμό των πινάκων που θα παραχθούν.
|
||
Χρησιμοποιείται η μέθοδος \`Array.slice()\` για να γίνει map κάθε στοιχείο του νέου πίνακα σε μια πλειάδα στοιχείων μήκους \`size\`.
|
||
Αν ο αρχικός πίνακας δε μπορεί να χωριστεί σε ίσα τμήματα, ο τελευταίος υποπίνακας θα περιέχει τα εναπομείναντα στοιχεία.
|
||
|
||
`,
|
||
'comments': [`// [[1,2],[3,4],[5]]`],
|
||
'hash': '08ec92acf3f5d606ad2358a30d40f18b2cb78b4e48d31599bb022c749cc6c9c2'
|
||
},
|
||
'clampNumber' : {
|
||
'description': `### clampNumber
|
||
|
||
Περιορίζει ένα αριθμό \`num\` μέσα στο εύρος τιμών που περικλείεται ανάμεσα στις τιμές \`a\` και \`b\` (περιλαμβάνοντας τα άκρα).
|
||
|
||
Αν ο αριθμός \`num\` είναι μέσα στο εύρος τιμών, επιστρέφεται ο αριθμός \`num\`.
|
||
Αλλιώς, επιστρέφεται ο κοντινότερος αριθμός μέσα στο εύρος τιμών.
|
||
|
||
`,
|
||
'comments': [`// 3`,`// -1`],
|
||
'hash': '09c31287b551db9961ca3f15ec3bbc53965edf318ef50c05fac8cfd52919c2e9'
|
||
},
|
||
'cloneRegExp' : {
|
||
'description': `### cloneRegExp
|
||
|
||
Κλωνοποιεί μία κανονική έκφραση (regular expression).
|
||
|
||
Χρησιμοποιείται μία \`new RegExp()\`, οι μέθοδοι \`RegExp.source\` και \`RegExp.flags\` για να κλωνοποιηθεί η δεδομένη κανονική έκφραση.
|
||
|
||
`,
|
||
'comments': [`// /lorem ipsum/gi`],
|
||
'hash': 'ee8e6e19269907273e58f0820bdbfc57022b6673453283058aedbbfc76586658'
|
||
},
|
||
'coalesce' : {
|
||
'description': `### coalesce
|
||
|
||
Επιστρέφει το πρώτο όρισμα που δεν είναι null ή undefined.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.find()\` για να επιστρέψει το πρώτο όρισμα που δεν είναι \`null\` ή \`undefined\`.
|
||
|
||
`,
|
||
'comments': [`// ""`],
|
||
'hash': 'e0623f0679ae4ec6af58ad00526ba69458fce3bb442e86796d91638e45d8f509'
|
||
},
|
||
'coalesceFactory' : {
|
||
'description': `### coalesceFactory
|
||
|
||
Επιστρέφει μία συνάρτηση που επιστρέφει το πρώτο όρισμα που επιστρέφει \`true\` από τη δεδομένη συνάρτηση επικύρωσης ορισμάτων.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.find()\` για να επιστρέψει το πρώτο όρισμα που επιστρέφει \`true\` από τη δεδομένη συνάρτηση επικύρωσης ορισμάτων.
|
||
|
||
`,
|
||
'comments': [`// "Waldo"`],
|
||
'hash': 'a7874701262b9deec699ed856a358e40fd5de71524a175efe7a9a76a9936d3ad'
|
||
},
|
||
'collectInto' : {
|
||
'description': `### collectInto
|
||
|
||
Μετατρέπει μία a συνάρτηση που δέχεται σαν όρισμα ένα πίνακα σε μία συνάρτηση πολλαπλών ορισμάτων (variadic).
|
||
|
||
Δεδομένης μία συνάρτησης, επιστρέφει ένα closure που συλλέγει όλα τα δεδομένα εισόδου σε μία συνάρτηση που δέχεται σαν όρισμα ένα πίνακα.
|
||
|
||
`,
|
||
'comments': [`// [1, 2, 3] (μετά από περίπου 2 δευτερόλεπτα)`],
|
||
'hash': '6b57cac68ad177d8fbb30e9c586f8f9c088acf755c6c956b5387441ea3850fce'
|
||
},
|
||
'colorize' : {
|
||
'description': `### colorize
|
||
|
||
Προσθέτει ειδικούς χαρακτήρες σε κείμενο για να εμφανιστεί με χρώματα στην κονσόλα (σε συνδυασμό με τη μέθοδο \`console.log()\`).
|
||
|
||
Χρησιμοποιούνται template literals και ειδικοί χαρακτήρες για να προστεθεί ο κατάλληλος κωδικός χρώματος στη συμβολοσειρά.
|
||
Για χρώματα φόντου, προστίθεται ένας επιπλέον ειδικός χαρακτήρας που καθαρίζει το χρώμα παρασκηνίου μετά το τέλος της συμβολοσειράς.
|
||
|
||
`,
|
||
'comments': [`// 'foo' (κόκκινα γράμματα)`,`// 'foo bar' (μπλε φόντο)`,`// 'foo bar' (η πρώτη λέξη με κίτρινα γράμματα, η δεύτερη με πράσινα γράμματα, λευκό φόντο και για τις δυο)`],
|
||
'hash': '4f42f00e7d675d21829a5fcd2ab2e3fa2058d1c1b1d6850ff28f2a424364593e'
|
||
},
|
||
'compact' : {
|
||
'description': `### compact
|
||
|
||
Αφαιρεί όσες τιμές αξιολογούνται ως false σε ένα πίνακα.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.filter()\` για να αφαιρέσει τις τιμές (\`false\`, \`null\`, \`0\`, \`""\`, \`undefined\`, and \`NaN\`).
|
||
|
||
`,
|
||
'comments': [`// [ 1, 2, 3, 'a', 's', 34 ]`],
|
||
'hash': '9e8d5592a9de422eff555d3e3e27779d6f1a6cd06de0461c3c0799283348332c'
|
||
},
|
||
'compose' : {
|
||
'description': `### compose
|
||
|
||
Εκτελεί σύνθεση συναρτήσεων από τα δεξιά προς τα αριστερά.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.reduce()\` για να εκτελεστεί σύνθεση συναρτήσεων από τα δεξιά προς τα αριστερά.
|
||
Η τελευταία (δεξιότερη) συνάρτηση μπορεί να δεχτεί ένα ή περισσότερα ορίσματα, οι υπόλοιπες πρέπει να είναι μοναδιαίες.
|
||
|
||
`,
|
||
'comments': [`// 15`],
|
||
'hash': 'eadb3dc774a236e7c0255a2fb1e203eaa390eb50fcff2a410284557385134f58'
|
||
},
|
||
'composeRight' : {
|
||
'description': `### composeRight
|
||
|
||
Εκτελεί σύνθεση συναρτήσεων από τα αριστερά προς τα δεξιά.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.reduce()\` για να εκτελεστεί σύνθεση συναρτήσεων από τα αριστερά προς τα δεξιά.
|
||
Η πρώτη (αριστερότερη) συνάρτηση μπορεί να δεχτεί ένα ή περισσότερα ορίσματα, οι υπόλοιπες πρέπει να είναι μοναδιαίες.
|
||
|
||
`,
|
||
'comments': [`// 9`],
|
||
'hash': '8504d35e91465faf7d001d829b855dddb2672882699328ae8c90520c8f59eaf8'
|
||
},
|
||
'converge' : {
|
||
'description': `### converge
|
||
|
||
Δέχεται μια συγκλίνουσα συνάρτηση και μία λίστα συναρτήσεων διακλάδωσης και επιστρέφει μια συνάρτηση που εφαρμόζει κάθε συνάρτηση διακλάδωσης στα ορίσματα και τα αποτελέσματά τους δίνονται ως ορίσματα στη συγκλίνουσα συνάρτηση.
|
||
|
||
Χρησιμοποιούνται οι μέθοδοι \`Array.map()\` και \`Function.apply()\` για να εφαρμοστεί κάθε συνάρτηση στα δεδομένα ορίσματα.
|
||
Χρησιμοποιείται ο τελεστής spread (\`...\`) για να κληθεί η μέθοδος \`coverger\` με τα αποτελέσματα των άλλων μεθόδων.
|
||
|
||
`,
|
||
'comments': [`// 4`],
|
||
'hash': '198b90bf166c74f511a66cfcb6c2e55aab7dafd600d3c53f2b26d9f8a0aade0f'
|
||
},
|
||
'copyToClipboard' : {
|
||
'description': `### copyToClipboard
|
||
|
||
Αντιγράφει μια συμβολοσειρά στο πρόχειρο. Λειτουργεί μόνο σαν αποτέλεσμα ενέργειας χρήστη (δηλαδή μέσα σε ένα event listener για \`click\`).
|
||
|
||
Δημιουργείται ένα νέο στοιχείο \`<textarea>\`, γεμίζεται με τα παρχεόμενα δεδομένα και προστίθεται στο έγγραφο HTML.
|
||
Χρησιμοποιείται η μέθοδος \`Selection.getRangeAt()\` για να αποθηκεύσει το επιλεγμένο εύρος (αν υπάρχει).
|
||
Χρησιμοποιείται η μέθοδος \`document.execCommand('copy')\` για να γίνει αντιγραφή στο πρόχειρο.
|
||
Αφαιρείται το στοιχείο \`<textarea>\` από το έγγραφο HTML.
|
||
Τέλος, χρησιμοποιείται η μέθοδος \`Selection().addRange()\` για να γίνει ανάκτηση του επιλεγμένου έυρους (αν υπήρχε).
|
||
|
||
`,
|
||
'comments': [`// 'Lorem ipsum' αντεγραμμένο στο πρόχειρο.`],
|
||
'hash': 'c496300a947ef9aabbe72f79c7ba0ca85c3a816eb54cbc8bb44ea5830b5380c9'
|
||
},
|
||
'countBy' : {
|
||
'description': `### countBy
|
||
|
||
Ομαδοποιεί τα στοιχεία ενός πίνακα με βάση τη δεδομένη συνάρτηση και επιστρέφει το πλήθος των στοιχείων σε κάθε ομάδα.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.map()\` για να γίνει map των τιμών του πίνακα σε ένα όνομα συνάρτησης ή ιδιότητας.
|
||
Χρησιμοποιείται η μέθοδος \`Array.reduce()\` για να δημιουργηθεί ένα αντικείμενο, το οποίου τα keys παράγονται από τα αποτελέσματα του προηγούμενου mapping.
|
||
|
||
`,
|
||
'comments': [`// {4: 1, 6: 2}`,`// {3: 2, 5: 1}`],
|
||
'hash': 'f2d7ea332efad9bcf0142a12080d7790be797ed7ac4bdbe5b2aa315c450568b6'
|
||
},
|
||
'countOccurrences' : {
|
||
'description': `### countOccurrences
|
||
|
||
Μετρά το πλήθος εμφανίσεων μια τιμής σε ένα πίνακα.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Array.reduce()\` για να επαυξηθεί ένας μετρητής κάθε φορά που συναντάται ένα στοιχείο με τη συγκεκριμένη τιμή μέσα στον πίνακα.
|
||
|
||
`,
|
||
'comments': [`// 3`],
|
||
'hash': '9a1cb0654d5660678f12f9eb797ae2e2b20bc29743f2c2197670399941349fa1'
|
||
},
|
||
'createElement' : {
|
||
'description': `### createElement
|
||
|
||
Δημιουργεί ένα στοιχείο από μία συμβολοσειρά (χωρίς να το προσθέτει στο έγγραφο).
|
||
Αν η δεδομένη συμβολοσειρά περιέχει πολλαπλά στοιχεία, μόνο το πρώτο θα επιστραφεί.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`document.createElement()\` για να δημιουργηθεί ένα στοιχείο.
|
||
Τίθεται το \`innerHTML\` του στη συμβολοσειρά που δόθηκε ως όρισμα.
|
||
Χρησιμοποιείται η ιδιότητα \`ParentNode.firstElementChild\` για να επιστραφεί το στοιχείο που έχει παραχθεί.
|
||
|
||
`,
|
||
'comments': [`// 'container'`],
|
||
'hash': 'c700b4d0695f1916842fa8b2b68e63a3735b9b87681e54addb23e92c6404a5f5'
|
||
},
|
||
'createEventHub' : {
|
||
'description': `### createEventHub
|
||
|
||
Δημιουργεί ένα κεντρικό σημείο γεγονότων pub/sub ([publish–subscribe](https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern)) με μεθόδους \`emit\`, \`on\`, και \`off\`.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`Object.create(null)\` για να δημιουργήσει ένα άδειο αντικείμενο \`hub\` που δεν κληρονομεί ιδιότητες από το \`Object.prototype\`.
|
||
Για τη μέθοδο \`emit\`, αναλύεται ο πίνακας χειριστών με βάση το όρσμα \`event\` και έπειτα εκτελείται κάθε ένας με τη μέθοδο \`Array.forEach()\`, περνώντας τα δεδομένα σαν όρισμα.
|
||
Για τη μέθοδο \`on\`, δημιουργείται ένας πίνακας για το γεγονός αν δεν υπάρχει ήδη, έπειτα χρησιμοποιείται η μέθοδος \`Array.push()\` για να προστεθεί ο χειριστής στον πίνακα.
|
||
Για τη μέθοδο \`off\`, χρησιμοποιείται η μέθοδος \`Array.findIndex()\` για να βρεθεί ο δείκτη του χειριστή στον πίνακα γεγονότων και αφαιρείται με χρήση της μεθόδου \`Array.splice()\`.
|
||
|
||
`,
|
||
'comments': [`//en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern)) με μεθόδους \`emit\`, \`on\`, και \`off\`.`,`// Εγγραφή: ακούε για διάφορα είδη γεγονότων`,`// Δημοσίευση: εκπέμπει γεγονότα για να κληθούν όλοι οι χειριστές που έχουν εγγραφεί σε αυτά, περνώντας τα δεδομένα σαν όρισμα`,`// καταγράφει 'hello world' και 'Message event fired'`,`// καταγράφει το αντικείμενο και 'Message event fired'`,`// η μεταβλητή \`increment\` είναι πλέον 1`,`// Απεγγραφή: σταματάει ένα χειριστή να ακούει για το γεγονός 'message'`],
|
||
'hash': 'e952a30a27c1465ea9ac465d4b7de3f9dda6e58279c176bc7c0e98fb6d99f1fc'
|
||
},
|
||
'currentURL' : {
|
||
'description': `### currentURL
|
||
|
||
Επιστρέφει την τρέχουσα διεύθυνση URL.
|
||
|
||
Χρησιμοποιείται η μέθοδος \`window.location.href\` για να ληφθεί η τρέχουσα διεύθυνση URL.
|
||
|
||
`,
|
||
'comments': [`// 'https://google.com'`],
|
||
'hash': '84e59a5cb6f22eb0bd1595bd6cd4f6be60d5b6d8c4adf964f6d2d84d320bd1d6'
|
||
},
|
||
'curry' : {
|
||
'description': `### curry
|
||
|
||
Κάνει curry σε μία συνάρτηση.
|
||
|
||
Χρησιμοποιείται αναδρομή.
|
||
Αν ο αριθμός των παρεχόμενων ορισμάτων (\`args\`) είναι επαρκής, καλείται η δεδομένη συνάρτηση \`fn\`.
|
||
Αλλιώς, επιστρέφεται μια curried συνάρτηση \`fn\` που δέχεται τα υπόλοιπα ορίσματα.
|
||
Αν θέλετε να κάνετε curry μια συνάρτηση που δέχεται ένα μεταβλητό αριθμό ορισμάτων (μια variadic συνάρτηση, π.χ. τη μέθοδο \`Math.min()\`), μπορείτε προεραιτικά να δηλώσετε τον αριθμό των ορισμάτων ως τη δεύτερη παράμετρο, \`arity\`.
|
||
|
||
`,
|
||
'comments': [`// 1024`,`// 2`],
|
||
'hash': '0ae620833c37934878ad75bddab17d1fa5b40e9a13282216661a9da5f337b2a8'
|
||
},
|
||
'debounce' : {
|
||
'description': `### debounce
|
||
|
||
Δημιουργεί a debounced συνάρτηση that delays invoking the provided συνάρτηση until after \`wait\` milliseconds have elapsed since the last time the debounced συνάρτηση was invoked.
|
||
|
||
Χρησιμοποιείται \`setTimeout()\` and \`clearTimeout()\` to debounce the given method, \`fn\`.
|
||
Χρησιμοποιείται \`Function.apply()\` to apply the \`this\` context to the συνάρτηση and provide the necessary \`arguments\`.
|
||
Omit the second argument, \`wait\`, to set the timeout at a default of 0 ms.
|
||
|
||
`,
|
||
'comments': [`// Will log the window dimensions at most every 250ms`],
|
||
'hash': '1d4123922a86704d1acc0ac179415200f967fdd0d77a8193156a55c70a9ec79b'
|
||
},
|
||
'decapitalize' : {
|
||
'description': `### decapitalize
|
||
|
||
Decapitalizes the first letter of a string.
|
||
|
||
Χρησιμοποιείται πίνακα destructuring and \`String.toLowerCase()\` to decapitalize first letter, \`...rest\` to get πίνακα of characters after first letter and then \`Array.join('')\` to make it a string again.
|
||
Omit the \`upperRest\` parameter to keep the rest of the string intact,ήset it to \`true\` to convert to uppercase.
|
||
|
||
`,
|
||
'comments': [`// 'fooBar'`,`// 'fOOBAR'`],
|
||
'hash': '8c32253128ce65b3b13b389f9632985ea507f23da199b87d448dd4f7b5ae2dad'
|
||
},
|
||
'deepClone' : {
|
||
'description': `### deepClone
|
||
|
||
Δημιουργεί a deep clone of an object.
|
||
|
||
Χρησιμοποιείται recursion.
|
||
Χρησιμοποιείται \`Object.assign()\` and an empty αντικείμενο (\`{}\`) to create a shallow clone of the original.
|
||
Χρησιμοποιείται \`Object.keys()\` and \`Array.forEach()\` to determine which key-value pairs need to be deep cloned.
|
||
|
||
`,
|
||
'comments': [`// a !== b, a.obj !== b.obj`],
|
||
'hash': 'b308891e311b9a90a4868d2650b08c564cac9ed0ccb2ef3900adf65c3441d970'
|
||
},
|
||
'deepFlatten' : {
|
||
'description': `### deepFlatten
|
||
|
||
Deep flattens an array.
|
||
|
||
Χρησιμοποιείται recursion.
|
||
Χρησιμοποιείται \`Array.concat()\` with an empty πίνακα (\`[]\`) and the spread operator (\`...\`) to flatten an array.
|
||
Recursively flatten each element that is an array.
|
||
|
||
`,
|
||
'comments': [`// [1,2,3,4,5]`],
|
||
'hash': '842f1f5ba5469cd275b51861866bdfbe3a89e461e996e32e05ff5916406e7d07'
|
||
},
|
||
'defaults' : {
|
||
'description': `### defaults
|
||
|
||
Assigns default values for all properties in an αντικείμενο that are \`undefined\`.
|
||
|
||
Χρησιμοποιείται \`Object.assign()\` to create a new empty αντικείμενο and copy the original one to maintain key order, use \`Array.reverse()\` and the spread operator \`...\` to combine the default values from left to right, finally use \`obj\` again to overwrite properties that originally had a value.
|
||
|
||
`,
|
||
'comments': [`// { a: 1, b: 2 }`],
|
||
'hash': '3ad960a2f802dcc9ab494a4d4010e01fe41841fddf250c76e6ca85d0f936fda0'
|
||
},
|
||
'defer' : {
|
||
'description': `### defer
|
||
|
||
Defers invoking a συνάρτηση until the current call stack has cleared.
|
||
|
||
Χρησιμοποιείται \`setTimeout()\` with a timeout of 1ms to add a new event to the browser event queue and allow the rendering engine to complete its work. Χρησιμοποιείται the spread (\`...\`) operator to supply the συνάρτηση with an arbitrary number of arguments.
|
||
|
||
`,
|
||
'comments': [`// Example A:`,`// logs 'b' then 'a'`,`// Example B:`,`//Browser will not update the HTML until this has finished`,`// Browser will update the HTML then run the function`],
|
||
'hash': 'ec8e56228f91ef3fab2b4895912ab082cfc37f617b10b82304beb9239c3fd8d6'
|
||
},
|
||
'delay' : {
|
||
'description': `### delay
|
||
|
||
Invokes the provided συνάρτηση after \`wait\` milliseconds.
|
||
|
||
Χρησιμοποιείται \`setTimeout()\` to delay execution of \`fn\`.
|
||
Χρησιμοποιείται the spread (\`...\`) operator to supply the συνάρτηση with an arbitrary number of arguments.
|
||
|
||
`,
|
||
'comments': [`// Logs 'later' after one second.`],
|
||
'hash': 'bcfc86542ccf08bcd721e099f4db41618737a3d619052045a2ec7556e62d1322'
|
||
},
|
||
'detectDeviceType' : {
|
||
'description': `### detectDeviceType
|
||
|
||
Detects wether the website is being opened in a mobile deviceήa desktop/laptop.
|
||
|
||
Χρησιμοποιείται a regular expression to test the \`navigator.userAgent\` property to figure out if the device is a mobile deviceήa desktop/laptop.
|
||
|
||
`,
|
||
'comments': [`// "Mobile"ή"Desktop"`],
|
||
'hash': 'fb87eebb59abc6428f949d510918e68d6e2483f75527fa37cb6fb175c6eadd06'
|
||
},
|
||
'difference' : {
|
||
'description': `### difference
|
||
|
||
Επιστρέφει the difference between two arrays.
|
||
|
||
Create a \`Set\` from \`b\`, then use \`Array.filter()\` on \`a\` to only keep values not contained in \`b\`.
|
||
|
||
`,
|
||
'comments': [`// [3]`],
|
||
'hash': '9f2fe2455a82dae09790f579684d2c6a9b9dca4a43825a69e08911a635eeafdc'
|
||
},
|
||
'differenceBy' : {
|
||
'description': `### differenceBy
|
||
|
||
Επιστρέφει the difference between two arrays, after applying the provided συνάρτηση to each πίνακα element of both.
|
||
|
||
Create a \`Set\` by applying \`fn\` to each element in \`b\`, then use \`Array.filter()\` in combination with \`fn\` on \`a\` to only keep values not contained in the previously created set.
|
||
|
||
`,
|
||
'comments': [`// [1.2]`,`// [ { x: 2 } ]`],
|
||
'hash': 'b4336c95ff54a4d272e5a367b09d0439aeaf349bb434cd23827c5521c73f92df'
|
||
},
|
||
'differenceWith' : {
|
||
'description': `### differenceWith
|
||
|
||
Filters out all values from an πίνακα for which the comparator συνάρτηση does not return \`true\`.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.findIndex()\` to find the appropriate values.
|
||
|
||
`,
|
||
'comments': [`// [1, 1.2]`],
|
||
'hash': 'b55661a99bc22533e51dd7b41162081204d468d1b6a40d2078464aaf5421cdbf'
|
||
},
|
||
'digitize' : {
|
||
'description': `### digitize
|
||
|
||
Μετατρέπει a number to an πίνακα of digits.
|
||
|
||
Convert the number to a string, using the spread operator (\`...\`) to build an array.
|
||
Χρησιμοποιείται \`Array.map()\` and \`parseInt()\` to transform each value to an integer.
|
||
|
||
`,
|
||
'comments': [`// [1, 2, 3]`],
|
||
'hash': '45d30539d39b085e88b7f8d4501e807a8f6c6a6036d6932eae540e6c6d8ea6ac'
|
||
},
|
||
'distance' : {
|
||
'description': `### distance
|
||
|
||
Επιστρέφει the distance between two points.
|
||
|
||
Χρησιμοποιείται \`Math.hypot()\` to calculate the Euclidean distance between two points.
|
||
|
||
`,
|
||
'comments': [`// 2.23606797749979`],
|
||
'hash': 'ad8cffd630645e104eaaa17c0813f4bfc16167ea582553faed58cb872c8d1608'
|
||
},
|
||
'drop' : {
|
||
'description': `### drop
|
||
|
||
Επιστρέφει a new πίνακα with \`n\` elements removed from the left.
|
||
|
||
Χρησιμοποιείται \`Array.slice()\` to slice the remove the specified number of elements from the left.
|
||
|
||
`,
|
||
'comments': [`// [2,3]`,`// [3]`,`// []`],
|
||
'hash': '9163978243a159591880152728093865f321333d9a0acf461e7dd80b623592d8'
|
||
},
|
||
'dropRight' : {
|
||
'description': `### dropRight
|
||
|
||
Επιστρέφει a new πίνακα with \`n\` elements removed from the right.
|
||
|
||
Χρησιμοποιείται \`Array.slice()\` to slice the remove the specified number of elements from the right.
|
||
|
||
`,
|
||
'comments': [`// [1,2]`,`// [1]`,`// []`],
|
||
'hash': '1c8b405a85997397f26f70b5cbc76d1c0cfd38ebce50dad8b40fe0870437b5cf'
|
||
},
|
||
'dropRightWhile' : {
|
||
'description': `### dropRightWhile
|
||
|
||
Removes elements from the end of an πίνακα until the passed συνάρτηση returns \`true\`. Επιστρέφει the remaining elements in the array.
|
||
|
||
Loop through the array, using \`Array.slice()\` to drop the last element of the πίνακα until the returned value from the συνάρτηση is \`true\`.
|
||
Επιστρέφει the remaining elements.
|
||
|
||
`,
|
||
'comments': [`// [1, 2]`],
|
||
'hash': '8b3d8c14f35432e1032e34ddd9cd16fb17a1ced24f0a91bc0693fab8c199a062'
|
||
},
|
||
'dropWhile' : {
|
||
'description': `### dropWhile
|
||
|
||
Removes elements in an πίνακα until the passed συνάρτηση returns \`true\`. Επιστρέφει the remaining elements in the array.
|
||
|
||
Loop through the array, using \`Array.slice()\` to drop the first element of the πίνακα until the returned value from the συνάρτηση is \`true\`.
|
||
Επιστρέφει the remaining elements.
|
||
|
||
`,
|
||
'comments': [`// [3,4]`],
|
||
'hash': 'f7a78522b1e35cf2efe8ad787af3d9f68b26e272b7b58cf18c50d2b3ebf5bf91'
|
||
},
|
||
'elementIsVisibleInViewport' : {
|
||
'description': `### elementIsVisibleInViewport
|
||
|
||
Επιστρέφει \`true\` if the element specified is visible in the viewport, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται \`Element.getBoundingClientRect()\` and the \`window.inner(Width|Height)\` values
|
||
to determine if a given element is visible in the viewport.
|
||
Omit the second argument to determine if the element is entirely visible,ήspecify \`true\` to determine if
|
||
it is partially visible.
|
||
|
||
`,
|
||
'comments': [`// e.g. 100x100 viewport and a 10x10px element at position {top: -1, left: 0, bottom: 9, right: 10}`,`// false - (not fully visible)`,`// true - (partially visible)`],
|
||
'hash': 'ecffed7e920d056fa6322754ee503b99f04b86163a551e1012a2e158d09e1c90'
|
||
},
|
||
'elo' : {
|
||
'description': `### elo
|
||
|
||
Computes the new ratings between twoήmore opponents using the [Elo rating system](https://en.wikipedia.org/wiki/Elo_rating_system). It takes an array
|
||
of pre-ratings and returns an πίνακα containing post-ratings.
|
||
The πίνακα should be ordered from best performer to worst performer (winner -> loser).
|
||
|
||
Χρησιμοποιείται the exponent \`**\` operator and math operators to compute the expected score (chance of winning).
|
||
of each opponent and compute the new rating for each.
|
||
Loop through the ratings, using each permutation to compute the post-Elo rating for each player in a pairwise fashion.
|
||
Omit the second argument to use the default \`kFactor\` of 32.
|
||
|
||
`,
|
||
'comments': [`//en.wikipedia.org/wiki/Elo_rating_system). It takes an array`,`// Standard 1v1s`,`// [1216, 1184]`,`// [1232, 1168]`,`// 4 player FFA, all same rank`,`// [1246, 1215, 1185, 1154]`],
|
||
'hash': 'd0c2fc6078f3eddcc10beb2753206bf9574d3c04fd498e48d4a765d6807aa9fd'
|
||
},
|
||
'equals' : {
|
||
'description': `### equals
|
||
|
||
Performs a deep comparison between two values to determine if they are equivalent.
|
||
|
||
Check if the two values are identical, if they are both \`Date\` objects with the same time, using \`Date.getTime()\`ήif they are both non-object values with an equivalent value (strict comparison).
|
||
Check if only one value is \`null\`ή\`undefined\`ήif their prototypes differ.
|
||
If none of the above conditions are met, use \`Object.keys()\` to check if both values have the same number of keys, then use \`Array.every()\` to check if every key in the first value exists in the second one and if they are equivalent by calling this method recursively.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '0b2d73c3cf1c6817ecbaf5de7b579c4a648caa2b8a638c4ea27f14574be0e9fd'
|
||
},
|
||
'escapeHTML' : {
|
||
'description': `### escapeHTML
|
||
|
||
Escapes a string for use in HTML.
|
||
|
||
Χρησιμοποιείται \`String.replace()\` with a regexp that matches the characters that need to be escaped, using a callback συνάρτηση to replace each character instance with its associated escaped character using a dictionary (object).
|
||
|
||
`,
|
||
'comments': [`// '<a href="#">Me & you</a>'`],
|
||
'hash': '5d5e09bc3a378d8cd1b5ac1f0de3d0b34e1af32c9b97f3878b9d103ebbd778d5'
|
||
},
|
||
'escapeRegExp' : {
|
||
'description': `### escapeRegExp
|
||
|
||
Escapes a string to use in a regular expression.
|
||
|
||
Χρησιμοποιείται \`String.replace()\` to escape special characters.
|
||
|
||
`,
|
||
'comments': [`// \\(test\\)`],
|
||
'hash': '29c6277721887e2813511cda714639223a7ee175da509cb789809054517b9f14'
|
||
},
|
||
'everyNth' : {
|
||
'description': `### everyNth
|
||
|
||
Επιστρέφει every nth element in an array.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` to create a new πίνακα that contains every nth element of a given array.
|
||
|
||
`,
|
||
'comments': [`// [ 2, 4, 6 ]`],
|
||
'hash': '98c8c8e152c498695b1a0ac8a4ef9ce91ddca13a476edf21105924f297deb68d'
|
||
},
|
||
'extendHex' : {
|
||
'description': `### extendHex
|
||
|
||
Extends a 3-digit color code to a 6-digit color code.
|
||
|
||
Χρησιμοποιείται \`Array.map()\`, \`String.split()\` and \`Array.join()\` to join the mapped πίνακα for converting a 3-digit RGB notated hexadecimal color-code to the 6-digit form.
|
||
\`Array.slice()\` is used to remove \`#\` from string start since it's added once.
|
||
|
||
`,
|
||
'comments': [`// '#0033ff'`,`// '#0055aa'`],
|
||
'hash': 'af0ffcf6ac451953aa9ab972c9379c6ff3cefc2a80aeb70e5363b7778843efde'
|
||
},
|
||
'factorial' : {
|
||
'description': `### factorial
|
||
|
||
Calculates the factorial of a number.
|
||
|
||
Χρησιμοποιείται recursion.
|
||
If \`n\` is less thanήequal to \`1\`, return \`1\`.
|
||
Otherwise, return the product of \`n\` and the factorial of \`n - 1\`.
|
||
Throws an exception if \`n\` is a negative number.
|
||
|
||
`,
|
||
'comments': [`// 720`],
|
||
'hash': '07eeb5e1e6437844c4ceb55c005e338a6aadd023d079060abbcd99261316e9ed'
|
||
},
|
||
'fibonacci' : {
|
||
'description': `### fibonacci
|
||
|
||
Generates an array, containing the Fibonacci sequence, up until the nth term.
|
||
|
||
Create an empty πίνακα of the specific length, initializing the first two values (\`0\` and \`1\`).
|
||
Χρησιμοποιείται \`Array.reduce()\` to add values into the array, using the sum of the last two values, except for the first two.
|
||
|
||
`,
|
||
'comments': [`// [0, 1, 1, 2, 3, 5]`],
|
||
'hash': '8e8577bbcf3ca98fe251070de239b3823fa0d9293227881c0a9e0ccf31e55c46'
|
||
},
|
||
'filterNonUnique' : {
|
||
'description': `### filterNonUnique
|
||
|
||
Filters out the non-unique values in an array.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` for an πίνακα containing only the unique values.
|
||
|
||
`,
|
||
'comments': [`// [1,3,5]`],
|
||
'hash': '010c054cfd578bee61c031396e068039227d1233e55010b53b400e02ae96c718'
|
||
},
|
||
'findKey' : {
|
||
'description': `### findKey
|
||
|
||
Επιστρέφει the first key that satisfies the provided testing function. Otherwise \`undefined\` is returned.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to get all the properties of the object, \`Array.find()\` to test the provided συνάρτηση for each key-value pair. The callback receives three ορίσματα - the value, the key and the object.
|
||
|
||
`,
|
||
'comments': [`// 'barney'`],
|
||
'hash': 'fd600ccac1652119c9b6b78b3b125593137cf5e88841d70dfab2043514fc589c'
|
||
},
|
||
'findLast' : {
|
||
'description': `### findLast
|
||
|
||
Επιστρέφει the last element for which the provided συνάρτηση returns a truthy value.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` to remove elements for which \`fn\` returns falsey values, \`Array.slice(-1)\` to get the last one.
|
||
|
||
`,
|
||
'comments': [`// 3`],
|
||
'hash': '1e0eb991adc3770a0e9b73f9ef56677df1e854decf769563a0983ea46f358d7f'
|
||
},
|
||
'findLastIndex' : {
|
||
'description': `### findLastIndex
|
||
|
||
Επιστρέφει the index of the last element for which the provided συνάρτηση returns a truthy value.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to map each element to an πίνακα with its index and value.
|
||
Χρησιμοποιείται \`Array.filter()\` to remove elements for which \`fn\` returns falsey values, \`Array.slice(-1)\` to get the last one.
|
||
|
||
`,
|
||
'comments': [`// 2 (index of the value 3)`],
|
||
'hash': '3600152d1379e251debfc76123694db973984e70e5428aa8a69df25948b8f493'
|
||
},
|
||
'findLastKey' : {
|
||
'description': `### findLastKey
|
||
|
||
Επιστρέφει the last key that satisfies the provided testing function. Otherwise \`undefined\` is returned.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to get all the properties of the object, \`Array.reverse()\` to reverse their order and \`Array.find()\` to test the provided συνάρτηση for each key-value pair. The callback receives three ορίσματα - the value, the key and the object.
|
||
|
||
`,
|
||
'comments': [`// 'pebbles'`],
|
||
'hash': '3aa6c03b0fc615df03351cb3ee9f8cce798d113449b604cebd268c2f508945de'
|
||
},
|
||
'flatten' : {
|
||
'description': `### flatten
|
||
|
||
Flattens an πίνακα up to the specified depth.
|
||
|
||
Χρησιμοποιείται recursion, decrementing \`depth\` by 1 for each level of depth.
|
||
Χρησιμοποιείται \`Array.reduce()\` and \`Array.concat()\` to merge elementsήarrays.
|
||
Base case, for \`depth\` equal to \`1\` stops recursion.
|
||
Omit the second argument, \`depth\` to flatten only to a depth of \`1\` (single flatten).
|
||
|
||
`,
|
||
'comments': [`// [1, 2, 3, 4]`,`// [1, 2, 3, [4, 5], 6, 7, 8]`],
|
||
'hash': 'fd7dcf06a4a4e4e1aa88b4f66730ff0f018afb59e0de70d860fe38fa125f86be'
|
||
},
|
||
'flattenObject' : {
|
||
'description': `### flattenObject
|
||
|
||
Flatten an αντικείμενο with the paths for keys.
|
||
|
||
Χρησιμοποιείται recursion.
|
||
Χρησιμοποιείται \`Object.keys(obj)\` combined with \`Array.reduce()\` to convert every leaf node to a flattened path node.
|
||
If the value of a key is an object, the συνάρτηση calls itself with the appropriate \`prefix\` to create the path using \`Object.assign()\`.
|
||
Otherwise, it adds the appropriate prefixed key-value pair to the accumulator object.
|
||
You should always omit the second argument, \`prefix\`, unless you want every key to have a prefix.
|
||
|
||
`,
|
||
'comments': [`// { 'a.b.c': 1, d: 1 }`],
|
||
'hash': '1627897681c3f7250287eef16e3d326626b0a9b6369687d21a511c0b057dadd9'
|
||
},
|
||
'flip' : {
|
||
'description': `### flip
|
||
|
||
Flip takes a συνάρτηση as an argument, then makes the first argument the last.
|
||
|
||
Return a closure that takes variadic inputs, and splices the last argument to make it the first argument before applying the rest.
|
||
|
||
`,
|
||
'comments': [`// == b`,`// == b`],
|
||
'hash': '57a42eb12cc7d4535c25d9945db9abb115ca9520e298fbaed64549ee22ac76aa'
|
||
},
|
||
'forEachRight' : {
|
||
'description': `### forEachRight
|
||
|
||
Executes a provided συνάρτηση once for each πίνακα element, starting from the array's last element.
|
||
|
||
Χρησιμοποιείται \`Array.slice(0)\` to clone the given array, \`Array.reverse()\` to reverse it and \`Array.forEach()\` to iterate over the reversed array.
|
||
|
||
`,
|
||
'comments': [`// '4', '3', '2', '1'`],
|
||
'hash': '80578fdbb56c0becb3bee0011d5d4e2fb650b78d9b66f9f8c31609fb53d8cab7'
|
||
},
|
||
'formatDuration' : {
|
||
'description': `### formatDuration
|
||
|
||
Επιστρέφει the human readable format of the given number of milliseconds.
|
||
|
||
Divide \`ms\` with the appropriate values to obtain the appropriate values for \`day\`, \`hour\`, \`minute\`, \`second\` and \`millisecond\`.
|
||
Χρησιμοποιείται \`Object.entries()\` with \`Array.filter()\` to keep only non-zero values.
|
||
Χρησιμοποιείται \`Array.map()\` to create the string for each value, pluralizing appropriately.
|
||
Χρησιμοποιείται \`String.join(', ')\` to combine the values into a string.
|
||
|
||
`,
|
||
'comments': [`// '1 second, 1 millisecond'`,`// '397 days, 6 hours, 44 minutes, 15 seconds, 574 milliseconds'`],
|
||
'hash': 'c68815d428595500e504e347900004e352397f56072a6bc9040909230a621515'
|
||
},
|
||
'forOwn' : {
|
||
'description': `### forOwn
|
||
|
||
Iterates over all own properties of an object, running a callback for each one.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to get all the properties of the object, \`Array.forEach()\` to run the provided συνάρτηση for each key-value pair. The callback receives three ορίσματα - the value, the key and the object.
|
||
|
||
`,
|
||
'comments': [`// 'bar', 1`],
|
||
'hash': '425efab14b8655ac4647e2dc601d0fca7ae583eb913699c950323244fb473c1d'
|
||
},
|
||
'forOwnRight' : {
|
||
'description': `### forOwnRight
|
||
|
||
Iterates over all own properties of an αντικείμενο in reverse, running a callback for each one.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to get all the properties of the object, \`Array.reverse()\` to reverse their order and \`Array.forEach()\` to run the provided συνάρτηση for each key-value pair. The callback receives three ορίσματα - the value, the key and the object.
|
||
|
||
`,
|
||
'comments': [`// 1, 'bar'`],
|
||
'hash': 'f4213d4ac1338cab9f635c51efe440ca02c7c26eb1319e9274b36f5b4ce9971b'
|
||
},
|
||
'fromCamelCase' : {
|
||
'description': `### fromCamelCase
|
||
|
||
Μετατρέπει a string from camelcase.
|
||
|
||
Χρησιμοποιείται \`String.replace()\` to remove underscores, hyphens, and spaces and convert words to camelcase.
|
||
Omit the second argument to use a default \`separator\` of \`_\`.
|
||
|
||
`,
|
||
'comments': [`// 'some database field name'`,`// 'some-label-that-needs-to-be-camelized'`,`// 'some_javascript_property'`],
|
||
'hash': '79a46435d7d7d46f08097a8442a660a40a931ded762be0741cb37f760ba774ea'
|
||
},
|
||
'functionName' : {
|
||
'description': `### functionName
|
||
|
||
Logs the name of a function.
|
||
|
||
Χρησιμοποιείται \`console.debug()\` and the \`name\` property of the passed method to log the method's name to the \`debug\` channel of the console.
|
||
|
||
`,
|
||
'comments': [`// max (logged in debug channel of console)`],
|
||
'hash': 'a135f158877f9a78e244205b63291b3b0fbba2954c467d3f8de9f7d220c6e6f6'
|
||
},
|
||
'functions' : {
|
||
'description': `### functions
|
||
|
||
Επιστρέφει an πίνακα of συνάρτηση property names from own (and προαιρετικά inherited) enumerable properties of an object.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to iterate over the object's own properties.
|
||
If \`inherited\` is \`true\`, use \`Object.get.PrototypeOf(obj)\` to also get the object's inherited properties.
|
||
Χρησιμοποιείται \`Array.filter()\` to keep only those properties that are functions.
|
||
Omit the second argument, \`inherited\`, to not include inherited properties by default.
|
||
|
||
`,
|
||
'comments': [`// ['a', 'b']`,`// ['a', 'b', 'c']`],
|
||
'hash': '4fd8a0093a5a9e04baa8928e1f35f53d80d52281169b2e3ded3efa4f5c0a4dd1'
|
||
},
|
||
'gcd' : {
|
||
'description': `### gcd
|
||
|
||
Calculates the greatest common divisor between twoήmore numbers/arrays.
|
||
|
||
The inner \`_gcd\` συνάρτηση uses recursion.
|
||
Base case is when \`y\` equals \`0\`. In this case, return \`x\`.
|
||
Otherwise, return the GCD of \`y\` and the remainder of the division \`x/y\`.
|
||
|
||
`,
|
||
'comments': [`// 4`,`// 4`],
|
||
'hash': 'a089cfa14c8316d2604567eeabb660394eaa447b3b55f8877d2bffd0e74ba8e8'
|
||
},
|
||
'geometricProgression' : {
|
||
'description': `### geometricProgression
|
||
|
||
Initializes an πίνακα containing the numbers in the specified range where \`start\` and \`end\` are inclusive and the ratio between two terms is \`step\`.
|
||
Επιστρέφει an error if \`step\` equals \`1\`.
|
||
|
||
Χρησιμοποιείται \`Array.from()\`, \`Math.log()\` and \`Math.floor()\` to create an πίνακα of the desired length, \`Array.map()\` to fill with the desired values in a range.
|
||
Omit the second argument, \`start\`, to use a default value of \`1\`.
|
||
Omit the third argument, \`step\`, to use a default value of \`2\`.
|
||
|
||
`,
|
||
'comments': [`// [1, 2, 4, 8, 16, 32, 64, 128, 256]`,`// [3, 6, 12, 24, 48, 96, 192]`,`// [1, 4, 16, 64, 256]`],
|
||
'hash': '3c64dfb3dad29e0d4f87ec7d6bb2448170342db36f2e81682c8ca37eb6cecce9'
|
||
},
|
||
'get' : {
|
||
'description': `### get
|
||
|
||
Retrieve a set of properties indicated by the given selectors from an object.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` for each selector, \`String.replace()\` to replace square brackets with dots, \`String.split('.')\` to split each selector, \`Array.filter()\` to remove empty values and \`Array.reduce()\` to get the value indicated by it.
|
||
|
||
`,
|
||
'comments': [`// ['val to select', 1, 'test']`],
|
||
'hash': 'a76e1d772d144839c1088cc824ffbeab13d4d7eca49f2d7111d17ab93e0b85a3'
|
||
},
|
||
'getColonTimeFromDate' : {
|
||
'description': `### getColonTimeFromDate
|
||
|
||
Επιστρέφει a string of the form \`HH:MM:SS\` from a \`Date\` object.
|
||
|
||
Χρησιμοποιείται \`Date.toString()\` and \`String.slice()\` to get the \`HH:MM:SS\` part of a given \`Date\` object.
|
||
|
||
`,
|
||
'comments': [`// "08:38:00"`],
|
||
'hash': 'd209a5811488f5c44f843ac7cadeaf958c31c10822b9e52e0ad89f44f89f1fb5'
|
||
},
|
||
'getDaysDiffBetweenDates' : {
|
||
'description': `### getDaysDiffBetweenDates
|
||
|
||
Επιστρέφει the difference (in days) between two dates.
|
||
|
||
Calculate the difference (in days) between two \`Date\` objects.
|
||
|
||
`,
|
||
'comments': [`// 9`],
|
||
'hash': 'bf00fb96be9d3c6835cab80a49fdb006ac53c00a80c412f5a83d72d0a3c8cb71'
|
||
},
|
||
'getMeridiemSuffixOfInteger' : {
|
||
'description': `### getMeridiemSuffixOfInteger
|
||
|
||
Μετατρέπει an integer to a suffixed string, adding \`am\`ή\`pm\` based on its value.
|
||
|
||
Χρησιμοποιείται the modulo operator (\`%\`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.
|
||
|
||
`,
|
||
'comments': [`// "12am"`,`// "11am"`,`// "1pm"`,`// "1pm"`],
|
||
'hash': '57e75c7e7077a1a02e0c1a7805f80ccd8b70ab2cb01c1e0934b8b421546e9724'
|
||
},
|
||
'getScrollPosition' : {
|
||
'description': `### getScrollPosition
|
||
|
||
Επιστρέφει the scroll position of the current page.
|
||
|
||
Χρησιμοποιείται \`pageXOffset\` and \`pageYOffset\` if they are defined, otherwise \`scrollLeft\` and \`scrollTop\`.
|
||
You can omit \`el\` to use a default value of \`window\`.
|
||
|
||
`,
|
||
'comments': [`// {x: 0, y: 200}`],
|
||
'hash': '56cb5f9d6742b38ade4e43014543721fb521fee32db7c8a0b3e845fd9acb9d74'
|
||
},
|
||
'getStyle' : {
|
||
'description': `### getStyle
|
||
|
||
Επιστρέφει the value of a CSS rule for the specified element.
|
||
|
||
Χρησιμοποιείται \`Window.getComputedStyle()\` to get the value of the CSS rule for the specified element.
|
||
|
||
`,
|
||
'comments': [`// '16px'`],
|
||
'hash': '9ca322f9a53d4e35584d18738174cdfd5b745747cdfadc9dbe4ab7492e79b56a'
|
||
},
|
||
'getType' : {
|
||
'description': `### getType
|
||
|
||
Επιστρέφει the native type of a value.
|
||
|
||
Επιστρέφει lowercased constructor name of value, \`"undefined"\`ή\`"null"\` if value is \`undefined\`ή\`null\`.
|
||
|
||
`,
|
||
'comments': [`// 'set'`],
|
||
'hash': '70f912b7b6050a1e45db91e52108f955be199e67bc418e44350ca75dbc95fa2b'
|
||
},
|
||
'getURLParameters' : {
|
||
'description': `### getURLParameters
|
||
|
||
Επιστρέφει an αντικείμενο containing the parameters of the current URL.
|
||
|
||
Χρησιμοποιείται \`String.match()\` with an appropriate regular expression to get all key-value pairs, \`Array.reduce()\` to map and combine them into a single object.
|
||
Pass \`location.search\` as the argument to apply to the current \`url\`.
|
||
|
||
`,
|
||
'comments': [`//url.com/page?name=Adam&surname=Smith'); // {name: 'Adam', surname: 'Smith'}`,`// {}`],
|
||
'hash': '1ff87cb26f50c7134e7a0d4fb3a3fe46ee04880fecaa88da8c8627f1c3fbd5c9'
|
||
},
|
||
'groupBy' : {
|
||
'description': `### groupBy
|
||
|
||
Groups the elements of an πίνακα based on the given function.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to map the values of an πίνακα to a functionήproperty name.
|
||
Χρησιμοποιείται \`Array.reduce()\` to create an object, where the keys are produced from the mapped results.
|
||
|
||
`,
|
||
'comments': [`// {4: [4.2], 6: [6.1, 6.3]}`,`// {3: ['one', 'two'], 5: ['three']}`],
|
||
'hash': 'e51bce61fec83f5e1ed2eff4afedddff349bcc84dc3fee6d1dd51bc6f6e4f6c9'
|
||
},
|
||
'hammingDistance' : {
|
||
'description': `### hammingDistance
|
||
|
||
Calculates the Hamming distance between two values.
|
||
|
||
Χρησιμοποιείται XOR operator (\`^\`) to find the bit difference between the two numbers, convert to a binary string using \`toString(2)\`.
|
||
Count and return the number of \`1\`s in the string, using \`match(/1/g)\`.
|
||
|
||
`,
|
||
'comments': [`// 1`],
|
||
'hash': '98740141438317c0188fbdc9e95b4d4d6d472b92a0f42e7632d8ee9739a81d1f'
|
||
},
|
||
'hasClass' : {
|
||
'description': `### hasClass
|
||
|
||
Επιστρέφει \`true\` if the element has the specified class, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται \`element.classList.contains()\` to check if the element has the specified class.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '1b702b5ad1d572d8244d3e76165641fafc84234f54f33f56c36e4c4a8a63b842'
|
||
},
|
||
'hasFlags' : {
|
||
'description': `### hasFlags
|
||
|
||
Check if the current process's ορίσματα contain the specified flags.
|
||
|
||
Χρησιμοποιείται \`Array.every()\` and \`Array.includes()\` to check if \`process.argv\` contains all the specified flags.
|
||
Χρησιμοποιείται a regular expression to test if the specified flags are prefixed with \`-\`ή\`--\` and prefix them accordingly.
|
||
|
||
`,
|
||
'comments': [`// node myScript.js -s --test --cool=true`,`// true`,`// true`,`// false`],
|
||
'hash': '964cfade8a9134232f5d0be2c7826d49735467afb15f43ce472b00cffc0eb703'
|
||
},
|
||
'hashBrowser' : {
|
||
'description': `### hashBrowser
|
||
|
||
Δημιουργεί a hash for a value using the [SHA-256](https://en.wikipedia.org/wiki/SHA-2) algorithm. Επιστρέφει a promise.
|
||
|
||
Χρησιμοποιείται the [SubtleCrypto](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto) API to create a hash for the given value.
|
||
|
||
`,
|
||
'comments': [`//en.wikipedia.org/wiki/SHA-2) algorithm. Επιστρέφει a promise.`,`//developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto) API to create a hash for the given value.`,`// '04aa106279f5977f59f9067fa9712afc4aedc6f5862a8defc34552d8c7206393'`],
|
||
'hash': '5023bba7071042ed934cffc9c7c10879e1d83159d667d0f7cbd02a7b6563a59c'
|
||
},
|
||
'hashNode' : {
|
||
'description': `### hashNode
|
||
|
||
Δημιουργεί a hash for a value using the [SHA-256](https://en.wikipedia.org/wiki/SHA-2) algorithm. Επιστρέφει a promise.
|
||
|
||
Χρησιμοποιείται \`crypto\` API to create a hash for the given value.
|
||
|
||
`,
|
||
'comments': [`//en.wikipedia.org/wiki/SHA-2) algorithm. Επιστρέφει a promise.`,`// '04aa106279f5977f59f9067fa9712afc4aedc6f5862a8defc34552d8c7206393'`],
|
||
'hash': 'e50f540cf0fa0cfab53b5fd6d6db5c75458c9c532635530adcfb6296929e5815'
|
||
},
|
||
'head' : {
|
||
'description': `### head
|
||
|
||
Επιστρέφει the head of a list.
|
||
|
||
Χρησιμοποιείται \`arr[0]\` to return the first element of the passed array.
|
||
|
||
`,
|
||
'comments': [`// 1`],
|
||
'hash': '6a9d9363557cd7b6f2da6e75ce00ad391ca43572f9ba517a0da1cc613bfd724b'
|
||
},
|
||
'hexToRGB' : {
|
||
'description': `### hexToRGB
|
||
|
||
Μετατρέπει a color code to a \`rgb()\`ή\`rgba()\` string if alpha value is provided.
|
||
|
||
Χρησιμοποιείται bitwise right-shift operator and mask bits with \`&\` (and) operator to convert a hexadecimal color code (withήwithout prefixed with \`#\`) to a string with the RGB values. If it's 3-digit color code, first convert to 6-digit version. If an alpha value is provided alongside 6-digit hex, give \`rgba()\` string in return.
|
||
|
||
`,
|
||
'comments': [`// 'rgba(39, 174, 96, 255)'`,`// 'rgb(39, 174, 96)'`,`// 'rgb(255, 255, 255)'`],
|
||
'hash': '31a0efd8c6843e9140fe0d3fa587b51f6b42dd5a69d0290df3aca1740cc0851a'
|
||
},
|
||
'hide' : {
|
||
'description': `### hide
|
||
|
||
Hides all the elements specified.
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`) and \`Array.forEach()\` to apply \`display: none\` to each element specified.
|
||
|
||
`,
|
||
'comments': [`// Hides all <img> elements on the page`],
|
||
'hash': 'f4b802aa0800b92466ce3edfc37c72207ef749cf9cfab92db2d009c15a0e116c'
|
||
},
|
||
'httpGet' : {
|
||
'description': `### httpGet
|
||
|
||
Makes a \`GET\` request to the passed URL.
|
||
|
||
Χρησιμοποιείται [\`XMLHttpRequest\`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest) web api to make a \`get\` request to the given \`url\`.
|
||
Handle the \`onload\` event, by calling the given \`callback\` the \`responseText\`.
|
||
Handle the \`onerror\` event, by running the provided \`err\` function.
|
||
Omit the third argument, \`err\`, to log errors to the console's \`error\` stream by default.
|
||
|
||
`,
|
||
'comments': [`//developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest) web api to make a \`get\` request to the given \`url\`.`,`//jsonplaceholder.typicode.com/posts/1',`],
|
||
'hash': '3b30d0fbb1232a8e297ddf3d47f6095cc07f42f39a76f1c9123f387d10e19ceb'
|
||
},
|
||
'httpPost' : {
|
||
'description': `### httpPost
|
||
|
||
Makes a \`POST\` request to the passed URL.
|
||
|
||
Χρησιμοποιείται [\`XMLHttpRequest\`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest) web api to make a \`post\` request to the given \`url\`.
|
||
Set the value of an \`HTTP\` request header with \`setRequestHeader\` method.
|
||
Handle the \`onload\` event, by calling the given \`callback\` the \`responseText\`.
|
||
Handle the \`onerror\` event, by running the provided \`err\` function.
|
||
Omit the third argument, \`data\`, to send no data to the provided \`url\`.
|
||
Omit the fourth argument, \`err\`, to log errors to the console's \`error\` stream by default.
|
||
|
||
`,
|
||
'comments': [`//developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest) web api to make a \`post\` request to the given \`url\`.`,`//jsonplaceholder.typicode.com/posts',`,`//jsonplaceholder.typicode.com/posts',`,`//does not send a body`],
|
||
'hash': '74d7310fb6ddda6c02ef698853dd48ae5fc44096f17805f974d407b36f6e6ec8'
|
||
},
|
||
'httpsRedirect' : {
|
||
'description': `### httpsRedirect
|
||
|
||
Redirects the page to HTTPS if its currently in HTTP. Also, pressing the back button doesn't take it back to the HTTP page as its replaced in the history.
|
||
|
||
Χρησιμοποιείται \`location.protocol\` to get the protocol currently being used. If it's not HTTPS, use \`location.replace()\` to replace the existing page with the HTTPS version of the page. Χρησιμοποιείται \`location.href\` to get the full address, split it with \`String.split()\` and remove the protocol part of the URL.
|
||
|
||
`,
|
||
'comments': [`//' + location.href.split('//')[1]);`,`// If you are on http://mydomain.com, you are redirected to https://mydomain.com`],
|
||
'hash': '49f962c9be2cfe0e5e73b465d418497571988fe60b87c00fd0fff15a3666afa5'
|
||
},
|
||
'indexOfAll' : {
|
||
'description': `### indexOfAll
|
||
|
||
Επιστρέφει all indices of \`val\` in an array. If \`val\` never occurs, returns \`[]\`.
|
||
|
||
Χρησιμοποιείται \`Array.forEach()\` to loop over elements and \`Array.push()\` to store indices for matching elements.
|
||
Return the πίνακα of indices.
|
||
|
||
`,
|
||
'comments': [`// [0,3]`,`// []`],
|
||
'hash': '1b660ea5b19eb7bed6fbb637697952e4fc7ea8fcf85493dc9c658626e3d546e8'
|
||
},
|
||
'initial' : {
|
||
'description': `### initial
|
||
|
||
Επιστρέφει all the elements of an πίνακα except the last one.
|
||
|
||
Χρησιμοποιείται \`arr.slice(0,-1)\` to return all but the last element of the array.
|
||
|
||
`,
|
||
'comments': [`// [1,2]`],
|
||
'hash': '0b2c9f2799ea49dca3bc13b3346b2fb51171f4db8ec5a49860fd2af34ae30c76'
|
||
},
|
||
'initialize2DArray' : {
|
||
'description': `### initialize2DArray
|
||
|
||
Initializes a 2D πίνακα of given width and height and value.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to generate h rows where each is a new πίνακα of size w initialize with value. If the value is not provided, default to \`null\`.
|
||
|
||
`,
|
||
'comments': [`// [[0,0], [0,0]]`],
|
||
'hash': '613cfa641222fa5c1493abc3dd2315bcbec201b2ac763b780590d63b2a853c51'
|
||
},
|
||
'initializeArrayWithRange' : {
|
||
'description': `### initializeArrayWithRange
|
||
|
||
Initializes an πίνακα containing the numbers in the specified range where \`start\` and \`end\` are inclusive with their common difference \`step\`.
|
||
|
||
Χρησιμοποιείται \`Array.from(Math.ceil((end+1-start)/step))\` to create an πίνακα of the desired length(the amounts of elements is equal to \`(end-start)/step\`ή\`(end+1-start)/step\` for inclusive end), \`Array.map()\` to fill with the desired values in a range.
|
||
You can omit \`start\` to use a default value of \`0\`.
|
||
You can omit \`step\` to use a default value of \`1\`.
|
||
|
||
`,
|
||
'comments': [`// [0,1,2,3,4,5]`,`// [3,4,5,6,7]`,`// [0,2,4,6,8]`],
|
||
'hash': '249a523afbbc8d2e49977526c23e7aab22624ed3b70877d796ae5c43900683ca'
|
||
},
|
||
'initializeArrayWithRangeRight' : {
|
||
'description': `### initializeArrayWithRangeRight
|
||
|
||
Initializes an πίνακα containing the numbers in the specified range (in reverse) where \`start\` and \`end\` are inclusive with their common difference \`step\`.
|
||
|
||
Χρησιμοποιείται \`Array.from(Math.ceil((end+1-start)/step))\` to create an πίνακα of the desired length(the amounts of elements is equal to \`(end-start)/step\`ή\`(end+1-start)/step\` for inclusive end), \`Array.map()\` to fill with the desired values in a range.
|
||
You can omit \`start\` to use a default value of \`0\`.
|
||
You can omit \`step\` to use a default value of \`1\`.
|
||
|
||
`,
|
||
'comments': [`// [5,4,3,2,1,0]`,`// [7,6,5,4,3]`,`// [8,6,4,2,0]`],
|
||
'hash': '86eaa064d6dd675dd20e075600a230473fa8a827708273f8184467ad8a27e347'
|
||
},
|
||
'initializeArrayWithValues' : {
|
||
'description': `### initializeArrayWithValues
|
||
|
||
Initializes and fills an πίνακα with the specified values.
|
||
|
||
Χρησιμοποιείται \`Array(n)\` to create an πίνακα of the desired length, \`fill(v)\` to fill it with the desired values.
|
||
You can omit \`val\` to use a default value of \`0\`.
|
||
|
||
`,
|
||
'comments': [`// [2,2,2,2,2]`],
|
||
'hash': '87e1684c5acda0f9870b554e94960b5eabf5daf4ca6904b7bad9fe9fd3c930d4'
|
||
},
|
||
'inRange' : {
|
||
'description': `### inRange
|
||
|
||
Checks if the given number falls within the given range.
|
||
|
||
Χρησιμοποιείται arithmetic comparison to check if the given number is in the specified range.
|
||
If the second parameter, \`end\`, is not specified, the range is considered to be from \`0\` to \`start\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// false`,`// false`],
|
||
'hash': 'e3faba5899f7839bdb02e5a6a40ad4ce9b1d6de08972887eb388e27b0e6f9211'
|
||
},
|
||
'intersection' : {
|
||
'description': `### intersection
|
||
|
||
Επιστρέφει a list of elements that exist in both arrays.
|
||
|
||
Create a \`Set\` from \`b\`, then use \`Array.filter()\` on \`a\` to only keep values contained in \`b\`.
|
||
|
||
`,
|
||
'comments': [`// [2,3]`],
|
||
'hash': 'a47f3624bb684bedc89b5906a63186d30147515475f4d8e706738bc2b15e394b'
|
||
},
|
||
'intersectionBy' : {
|
||
'description': `### intersectionBy
|
||
|
||
Επιστρέφει a list of elements that exist in both arrays, after applying the provided συνάρτηση to each πίνακα element of both.
|
||
|
||
Create a \`Set\` by applying \`fn\` to all elements in \`b\`, then use \`Array.filter()\` on \`a\` to only keep elements, which produce values contained in \`b\` when \`fn\` is applied to them.
|
||
|
||
`,
|
||
'comments': [`// [2.1]`],
|
||
'hash': '1e556ba22570e0d72e2b37d180f15728954a948f02b1dc7ca5151ee43c74831b'
|
||
},
|
||
'intersectionWith' : {
|
||
'description': `### intersectionWith
|
||
|
||
Επιστρέφει a list of elements that exist in both arrays, using a provided comparator function.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.findIndex()\` in combination with the provided comparator to determine intersecting values.
|
||
|
||
`,
|
||
'comments': [`// [1.5, 3, 0]`],
|
||
'hash': '5ff22be7dc2c54131b58eae93beb3e6057a4abb186295c269f1fa2736aa817da'
|
||
},
|
||
'invertKeyValues' : {
|
||
'description': `### invertKeyValues
|
||
|
||
Inverts the key-value pairs of an object, without mutating it. The corresponding inverted value of each inverted key is an πίνακα of keys responsible for generating the inverted value. If a συνάρτηση is supplied, it is applied to each inverted key.
|
||
|
||
Χρησιμοποιείται \`Object.keys()\` and \`Array.reduce()\` to invert the key-value pairs of an αντικείμενο and apply the συνάρτηση provided (if any).
|
||
Omit the second argument, \`fn\`, to get the inverted keys without applying a συνάρτηση to them.
|
||
|
||
`,
|
||
'comments': [`// { 1: [ 'a', 'c' ], 2: [ 'b' ] }`,`// { group1: [ 'a', 'c' ], group2: [ 'b' ] }`],
|
||
'hash': '07023e56f241ca10160d7d3472bbf8d85e45dfc511015cb4ac558709bc4049ce'
|
||
},
|
||
'is' : {
|
||
'description': `### is
|
||
|
||
Checks if the provided value is of the specified type (doesn't work with literals).
|
||
|
||
Χρησιμοποιείται the \`instanceof\` operator to check if the provided value is of the specified \`type\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// true`,`// true`,`// true`,`// true`,`// true`,`// false`,`// true`,`// false`,`// true`,`// false`,`// true`],
|
||
'hash': '92478f7c1865c4bd82d22c6f941f8f1de5124ed91f0cb46b32bf4cc8b81050fe'
|
||
},
|
||
'isAbsoluteURL' : {
|
||
'description': `### isAbsoluteURL
|
||
|
||
Επιστρέφει \`true\` if the given string is an absolute URL, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται a regular expression to test if the string is an absolute URL.
|
||
|
||
`,
|
||
'comments': [`//google.com'); // true`,`//www.myserver.net'); // true`,`// false`],
|
||
'hash': 'a1c0b0ccf3608b21f23e16d72172d50d7b8eddd6575417553b24ad12fdce0984'
|
||
},
|
||
'isArrayLike' : {
|
||
'description': `### isArrayLike
|
||
|
||
Checks if the provided argument is array-like (i.e. is iterable).
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`) to check if the provided argument is iterable inside a \`try... catch\` block and the comma operator (\`,\`) to return the appropriate value.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// false`],
|
||
'hash': '5fa02581df99c788cb1eada4e3bc53cd76f5b78e21ea0f67e28b14965a5fb513'
|
||
},
|
||
'isBoolean' : {
|
||
'description': `### isBoolean
|
||
|
||
Checks if the given argument is a native boolean element.
|
||
|
||
Χρησιμοποιείται \`typeof\` to check if a value is classified as a boolean primitive.
|
||
|
||
`,
|
||
'comments': [`// false`,`// true`],
|
||
'hash': '939b9a43fb54f623ae441983aa890dfed498d21a198d13587a9a5c82b2470630'
|
||
},
|
||
'isDivisible' : {
|
||
'description': `### isDivisible
|
||
|
||
Checks if the first numeric argument is divisible by the second one.
|
||
|
||
Χρησιμοποιείται the modulo operator (\`%\`) to check if the remainder is equal to \`0\`.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '567ff4e71c4ad30ebb365fd9b91a54b5a1b46a2d832b7f6947ed06da94b4622d'
|
||
},
|
||
'isEmpty' : {
|
||
'description': `### isEmpty
|
||
|
||
Επιστρέφει true if the a value is an empty object, collection, mapήset, has no enumerable propertiesήis any type that is not considered a collection.
|
||
|
||
Check if the provided value is \`null\`ήif its \`length\` is equal to \`0\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// true`,`// true`,`// true`,`// false`,`// false`,`// false`,`// true - type is not considered a collection`,`// true - type is not considered a collection`],
|
||
'hash': '243117a13cd98f68b115e68906166c518101a5a59eb18b39b677a355853c6c0e'
|
||
},
|
||
'isEven' : {
|
||
'description': `### isEven
|
||
|
||
Επιστρέφει \`true\` if the given number is even, \`false\` otherwise.
|
||
|
||
Checks whether a number is oddήeven using the modulo (\`%\`) operator.
|
||
Επιστρέφει \`true\` if the number is even, \`false\` if the number is odd.
|
||
|
||
`,
|
||
'comments': [`// false`],
|
||
'hash': 'b6b6b6acedfee36a382482eec099ae2ae557b57b9247bc50388a28b6fffc870c'
|
||
},
|
||
'isFunction' : {
|
||
'description': `### isFunction
|
||
|
||
Checks if the given argument is a function.
|
||
|
||
Χρησιμοποιείται \`typeof\` to check if a value is classified as a συνάρτηση primitive.
|
||
|
||
`,
|
||
'comments': [`// false`,`// true`],
|
||
'hash': '608f4b36d061a98a0f8203ba3cecb48f87ccc6f7720fd5449e34b576f98aaecf'
|
||
},
|
||
'isLowerCase' : {
|
||
'description': `### isLowerCase
|
||
|
||
Checks if a string is lower case.
|
||
|
||
Convert the given string to lower case, using \`String.toLowerCase()\` and compare it to the original.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// false`],
|
||
'hash': 'db0ceaf0fe1e662750aabd1bd54032b17c471efc2511a120354cccc1f7d0808d'
|
||
},
|
||
'isNil' : {
|
||
'description': `### isNil
|
||
|
||
Επιστρέφει \`true\` if the specified value is \`null\`ή\`undefined\`, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται the strict equality operator to check if the value and of \`val\` are equal to \`null\`ή\`undefined\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`],
|
||
'hash': '6098b98799252bd8297351aaae52530f6d70454e9bc00491d47e401a28e92e11'
|
||
},
|
||
'isNull' : {
|
||
'description': `### isNull
|
||
|
||
Επιστρέφει \`true\` if the specified value is \`null\`, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται the strict equality operator to check if the value and of \`val\` are equal to \`null\`.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '3286793e1526d264a82f61f3ea3ec24be21f735e6df3a4349a5d124de52f8096'
|
||
},
|
||
'isNumber' : {
|
||
'description': `### isNumber
|
||
|
||
Checks if the given argument is a number.
|
||
|
||
Χρησιμοποιείται \`typeof\` to check if a value is classified as a number primitive.
|
||
|
||
`,
|
||
'comments': [`// false`,`// true`],
|
||
'hash': '319ed6fe8bd0ac2265d84e02a9cf3cf9245e52666e3d1f4d1c68060d6d222a15'
|
||
},
|
||
'isObject' : {
|
||
'description': `### isObject
|
||
|
||
Επιστρέφει a boolean determining if the passed value is an objectήnot.
|
||
|
||
Χρησιμοποιείταιs the \`Object\` constructor to create an αντικείμενο wrapper for the given value.
|
||
If the value is \`null\`ή\`undefined\`, create and return an empty object. Οtherwise, return an αντικείμενο of a type that corresponds to the given value.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// true`,`// true`,`// true`,`// false`],
|
||
'hash': '6bbd64bdaada44df70084acbe3aebe1057ae3cb63d3c397272a88069c27023f6'
|
||
},
|
||
'isObjectLike' : {
|
||
'description': `### isObjectLike
|
||
|
||
Checks if a value is object-like.
|
||
|
||
Check if the provided value is not \`null\` and its \`typeof\` is equal to \`'object'\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// false`,`// false`],
|
||
'hash': 'c54f1c3d860b85ead765941dc29927c814df798be381d4b7af15145aa5248866'
|
||
},
|
||
'isPlainObject' : {
|
||
'description': `### isPlainObject
|
||
|
||
Checks if the provided value is an αντικείμενο created by the Object constructor.
|
||
|
||
Check if the provided value is truthy, use \`typeof\` to check if it is an αντικείμενο and \`Object.constructor\` to make sure the constructor is equal to \`Object\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// false`],
|
||
'hash': '145da6b8fa6d399c9d53c1a49627a9aa12588ba08f22e8c0237663cdd29a3540'
|
||
},
|
||
'isPrime' : {
|
||
'description': `### isPrime
|
||
|
||
Checks if the provided integer is a prime number.
|
||
|
||
Check numbers from \`2\` to the square root of the given number.
|
||
Return \`false\` if any of them divides the given number, else return \`true\`, unless the number is less than \`2\`.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '8f2dc25121cc870f19c7e4614d1e2bfb80f69abb9f940e34506dd282d8b8b64f'
|
||
},
|
||
'isPrimitive' : {
|
||
'description': `### isPrimitive
|
||
|
||
Επιστρέφει a boolean determining if the passed value is primitiveήnot.
|
||
|
||
Χρησιμοποιείται \`Array.includes()\` on an πίνακα of type strings which are not primitive,
|
||
supplying the type using \`typeof\`.
|
||
Since \`typeof null\` evaluates to \`'object'\`, it needs to be directly compared.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// true`,`// true`,`// true`,`// false`],
|
||
'hash': '0b87a6344a40ec2e47acaed9b601441386cf18da96a491a99f087a9aa8ca6dd7'
|
||
},
|
||
'isPromiseLike' : {
|
||
'description': `### isPromiseLike
|
||
|
||
Επιστρέφει \`true\` if an αντικείμενο looks like a [\`Promise\`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise), \`false\` otherwise.
|
||
|
||
Check if the αντικείμενο is not \`null\`, its \`typeof\` matches either \`object\`ή\`function\` and if it has a \`.then\` property, which is also a \`function\`.
|
||
|
||
`,
|
||
'comments': [`//developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise), \`false\` otherwise.`,`// true`,`// false`,`// false`],
|
||
'hash': '42a7fea8a7f6348aad1a916f980af5c14d29da68748242340ff7298305117657'
|
||
},
|
||
'isSorted' : {
|
||
'description': `### isSorted
|
||
|
||
Επιστρέφει \`1\` if the πίνακα is sorted in ascending order, \`-1\` if it is sorted in descending orderή\`0\` if it is not sorted.
|
||
|
||
Calculate the ordering \`direction\` for the first two elements.
|
||
Χρησιμοποιείται \`Object.entries()\` to loop over πίνακα objects and compare them in pairs.
|
||
Return \`0\` if the \`direction\` changesήthe \`direction\` if the last element is reached.
|
||
|
||
`,
|
||
'comments': [`// 1`,`// -1`,`// 0`],
|
||
'hash': '13cd1ca2617236845d0bd97d5d22aa9a3619c1fa97eb8cdab7387580c7202749'
|
||
},
|
||
'isString' : {
|
||
'description': `### isString
|
||
|
||
Checks if the given argument is a string.
|
||
|
||
Χρησιμοποιείται \`typeof\` to check if a value is classified as a string primitive.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '950b5898c552fd198d97adc855e480c5e0a2e32acd0404d7c9b49bbe09f34394'
|
||
},
|
||
'isSymbol' : {
|
||
'description': `### isSymbol
|
||
|
||
Checks if the given argument is a symbol.
|
||
|
||
Χρησιμοποιείται \`typeof\` to check if a value is classified as a symbol primitive.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '772115bcf4dc1edd0493e55b422c0d5d35cd4719133840bf6d692e6d364df12f'
|
||
},
|
||
'isTravisCI' : {
|
||
'description': `### isTravisCI
|
||
|
||
Checks if the current environment is [Travis CI](https://travis-ci.org/).
|
||
|
||
Checks if the current environment has the \`TRAVIS\` and \`CI\` environment variables ([reference](https://docs.travis-ci.com/user/environment-variables/#Default-Environment-Variables)).
|
||
|
||
`,
|
||
'comments': [`//travis-ci.org/).`,`//docs.travis-ci.com/user/environment-variables/#Default-Environment-Variables)).`,`// true (if code is running on Travis CI)`],
|
||
'hash': 'c9e8be3686e292a4db56f8f6068ed75705b3260373689a10b57401703581f5cf'
|
||
},
|
||
'isUndefined' : {
|
||
'description': `### isUndefined
|
||
|
||
Επιστρέφει \`true\` if the specified value is \`undefined\`, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται the strict equality operator to check if the value and of \`val\` are equal to \`undefined\`.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '2eeeb674c5f4947224fb065e5a1fa0b0adbbefd9b7fab99190cc9a4b65bab724'
|
||
},
|
||
'isUpperCase' : {
|
||
'description': `### isUpperCase
|
||
|
||
Checks if a string is upper case.
|
||
|
||
Convert the given string to upper case, using \`String.toUpperCase()\` and compare it to the original.
|
||
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// false`],
|
||
'hash': '3450e2509a1e6beb102b98b987ca73924d55e7314dbddbbbd8acfdb147fdbecd'
|
||
},
|
||
'isValidJSON' : {
|
||
'description': `### isValidJSON
|
||
|
||
Checks if the provided argument is a valid JSON.
|
||
|
||
Χρησιμοποιείται \`JSON.parse()\` and a \`try... catch\` block to check if the provided argument is a valid JSON.
|
||
|
||
`,
|
||
'comments': [`// true`,`// false`,`// true`],
|
||
'hash': 'a0ce043d4ed321c92f30bba8fd9e27270581e0bfae327e6efe3e637cc51700d5'
|
||
},
|
||
'join' : {
|
||
'description': `### join
|
||
|
||
Joins all elements of an πίνακα into a string and returns this string. Χρησιμοποιείταιs a separator and an end separator.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to combine elements into a string.
|
||
Omit the second argument, \`separator\`, to use a default separator of \`','\`.
|
||
Omit the third argument, \`end\`, to use the same value as \`separator\` by default.
|
||
|
||
`,
|
||
'comments': [`// "pen,pineapple,apple&pen"`,`// "pen,pineapple,apple,pen"`,`// "pen,pineapple,apple,pen"`],
|
||
'hash': '87811928e680a995933e2bf0020174e9983eebcfcc1a26b7eb5d56c643e441be'
|
||
},
|
||
'JSONToFile' : {
|
||
'description': `### JSONToFile
|
||
|
||
Writes a JSON αντικείμενο to a file.
|
||
|
||
Χρησιμοποιείται \`fs.writeFile()\`, template literals and \`JSON.stringify()\` to write a \`json\` αντικείμενο to a \`.json\` file.
|
||
|
||
`,
|
||
'comments': [`// writes the αντικείμενο to 'testJsonFile.json'`],
|
||
'hash': 'a44f1723a47ee41237a23e791519b39cf3ac206a3a2b79430bd023a3af8e44ef'
|
||
},
|
||
'last' : {
|
||
'description': `### last
|
||
|
||
Επιστρέφει the last element in an array.
|
||
|
||
Χρησιμοποιείται \`arr.length - 1\` to compute the index of the last element of the given πίνακα and returning it.
|
||
|
||
`,
|
||
'comments': [`// 3`],
|
||
'hash': '3439302a2366ff96c558f451a0a492524fb05e11bfbca39629400b3656ae2aff'
|
||
},
|
||
'lcm' : {
|
||
'description': `### lcm
|
||
|
||
Επιστρέφει the least common multiple of twoήmore numbers.
|
||
|
||
Χρησιμοποιείται the greatest common divisor (GCD) formula and the fact that \`lcm(x,y) = x * y / gcd(x,y)\` to determine the least common multiple.
|
||
The GCD formula uses recursion.
|
||
|
||
`,
|
||
'comments': [`// 84`,`// 60`],
|
||
'hash': '138716f0d371c6a5f6774c1a6da35b2e8187cc6dab5f9d6cdb5c76327318d210'
|
||
},
|
||
'longestItem' : {
|
||
'description': `### longestItem
|
||
|
||
Takes any number of iterable objectsήobjects with a \`length\` property and returns the longest one.
|
||
|
||
Χρησιμοποιείται \`Array.sort()\` to sort all ορίσματα by \`length\`, return the first (longest) one.
|
||
|
||
`,
|
||
'comments': [`// 'testcase'`,`// 'abc'`,`// 'abcd'`,`// [1, 2, 3, 4, 5]`,`// 'foobar'`],
|
||
'hash': 'e9686ac4809ee0049f65662bd446a208493eff7ac31cff7f5424b0252e0887aa'
|
||
},
|
||
'lowercaseKeys' : {
|
||
'description': `### lowercaseKeys
|
||
|
||
Δημιουργεί a new αντικείμενο from the specified object, where all the keys are in lowercase.
|
||
|
||
Χρησιμοποιείται \`Object.keys()\` and \`Array.reduce()\` to create a new αντικείμενο from the specified object.
|
||
Convert each key in the original αντικείμενο to lowercase, using \`String.toLowerCase()\`.
|
||
|
||
`,
|
||
'comments': [`// {name: 'Adam', surname: 'Smith'};`],
|
||
'hash': '814caed29be26ad7b58b3bc7c9990565211abf9d6edc81a431fc050ee276cc23'
|
||
},
|
||
'luhnCheck' : {
|
||
'description': `### luhnCheck
|
||
|
||
Implementation of the [Luhn Algorithm](https://en.wikipedia.org/wiki/Luhn_algorithm) used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, National Provider Identifier numbers etc.
|
||
|
||
Χρησιμοποιείται \`String.split('')\`, \`Array.reverse()\` and \`Array.map()\` in combination with \`parseInt()\` to obtain an πίνακα of digits.
|
||
Χρησιμοποιείται \`Array.splice(0,1)\` to obtain the last digit.
|
||
Χρησιμοποιείται \`Array.reduce()\` to implement the Luhn Algorithm.
|
||
Return \`true\` if \`sum\` is divisible by \`10\`, \`false\` otherwise.
|
||
|
||
|
||
`,
|
||
'comments': [`//en.wikipedia.org/wiki/Luhn_algorithm) used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, National Provider Identifier numbers etc.`,`// true`,`// false`,`// false`],
|
||
'hash': '5c4099ce67b4fe29d681976195a0b73d93a7d5030519dbb2faab8cb0a9c506dc'
|
||
},
|
||
'mapKeys' : {
|
||
'description': `### mapKeys
|
||
|
||
Δημιουργεί an αντικείμενο with keys generated by running the provided συνάρτηση for each key and the same values as the provided object.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to iterate over the object's keys.
|
||
Χρησιμοποιείται \`Array.reduce()\` to create a new αντικείμενο with the same values and mapped keys using \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// { a1: 1, b2: 2 }`],
|
||
'hash': '057377a13df66b41ba55e565c089c2e5555c8cd11e8e809f6026cce9393c79c3'
|
||
},
|
||
'mapObject' : {
|
||
'description': `### mapObject
|
||
|
||
Maps the values of an πίνακα to an αντικείμενο using a function, where the key-value pairs consist of the original value as the key and the mapped value.
|
||
|
||
Χρησιμοποιείται an anonymous inner συνάρτηση scope to declare an undefined memory space, using closures to store a return value. Χρησιμοποιείται a new \`Array\` to store the πίνακα with a map of the συνάρτηση over its data set and a comma operator to return a second step, without needing to move from one context to another (due to closures and order of operations).
|
||
|
||
`,
|
||
'comments': [`// { 1: 1, 2: 4, 3: 9 }`],
|
||
'hash': 'e2cfc281da735e9646736c04e68be072d6beb8e4be9151d1cfb3b4d108a33a3b'
|
||
},
|
||
'mapValues' : {
|
||
'description': `### mapValues
|
||
|
||
Δημιουργεί an αντικείμενο with the same keys as the provided αντικείμενο and values generated by running the provided συνάρτηση for each value.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to iterate over the object's keys.
|
||
Χρησιμοποιείται \`Array.reduce()\` to create a new αντικείμενο with the same keys and mapped values using \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// { fred: 40, pebbles: 1 }`],
|
||
'hash': 'f5d593346b2ff0fc0924b56db462cb53b991bc8dee71e4d5863ef1cd2c3a686e'
|
||
},
|
||
'mask' : {
|
||
'description': `### mask
|
||
|
||
Replaces all but the last \`num\` of characters with the specified mask character.
|
||
|
||
Χρησιμοποιείται \`String.slice()\` to grab the portion of the characters that need to be masked and use \`String.replace()\` with a regexp to replace every character with the mask character.
|
||
Concatenate the masked characters with the remaining unmasked portion of the string.
|
||
Omit the second argument, \`num\`, to keep a default of \`4\` characters unmasked. If \`num\` is negative, the unmasked characters will be at the start of the string.
|
||
Omit the third argument, \`mask\`, to use a default character of \`'*'\` for the mask.
|
||
|
||
`,
|
||
'comments': [`// '******7890'`,`// '*******890'`,`// '$$$$567890'`],
|
||
'hash': '7b89d9ce8cb19b762cfd57a005a688d5f82faf29e0e9067fab3f3c8892b41182'
|
||
},
|
||
'matches' : {
|
||
'description': `### matches
|
||
|
||
Compares two objects to determine if the first one contains equivalent property values to the second one.
|
||
|
||
Χρησιμοποιείται \`Object.keys(source)\` to get all the keys of the second object, then \`Array.every()\`, \`Object.hasOwnProperty()\` and strict comparison to determine if all keys exist in the first αντικείμενο and have the same values.
|
||
|
||
`,
|
||
'comments': [`// true`,`// false`],
|
||
'hash': '6bc4b4501cf025724b14200d9c3952b5f90f95da9dd9c51e9bb67ddee7668caf'
|
||
},
|
||
'matchesWith' : {
|
||
'description': `### matchesWith
|
||
|
||
Compares two objects to determine if the first one contains equivalent property values to the second one, based on a provided function.
|
||
|
||
Χρησιμοποιείται \`Object.keys(source)\` to get all the keys of the second object, then \`Array.every()\`, \`Object.hasOwnProperty()\` and the provided συνάρτηση to determine if all keys exist in the first αντικείμενο and have equivalent values.
|
||
If no συνάρτηση is provided, the values will be compared using the equality operator.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '55f1b19b911497b0590d1477e0756669a9895c5ad780ab178c1388e93b21503f'
|
||
},
|
||
'maxBy' : {
|
||
'description': `### maxBy
|
||
|
||
Επιστρέφει the maximum value of an array, after mapping each element to a value using the provided function.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to map each element to the value returned by \`fn\`, \`Math.max()\` to get the maximum value.
|
||
|
||
`,
|
||
'comments': [`// 8`,`// 8`],
|
||
'hash': 'adaadb4a74c72470bf8e30e24ef1dd2cb0376bbb7204b38364d46b4cf1bf9b17'
|
||
},
|
||
'maxN' : {
|
||
'description': `### maxN
|
||
|
||
Επιστρέφει the \`n\` maximum elements from the provided array. If \`n\` is greater thanήequal to the provided array's length, then return the original array(sorted in descending order).
|
||
|
||
Χρησιμοποιείται \`Array.sort()\` combined with the spread operator (\`...\`) to create a shallow clone of the πίνακα and sort it in descending order.
|
||
Χρησιμοποιείται \`Array.slice()\` to get the specified number of elements.
|
||
Omit the second argument, \`n\`, to get a one-element array.
|
||
|
||
`,
|
||
'comments': [`// [3]`,`// [3,2]`],
|
||
'hash': '9af9c62fb092b800e35b6f32e9a05f4991adf104748e2de690833294800f6ca9'
|
||
},
|
||
'median' : {
|
||
'description': `### median
|
||
|
||
Επιστρέφει the median of an πίνακα of numbers.
|
||
|
||
Find the middle of the array, use \`Array.sort()\` to sort the values.
|
||
Return the number at the midpoint if \`length\` is odd, otherwise the average of the two middle numbers.
|
||
|
||
`,
|
||
'comments': [`// 5`],
|
||
'hash': '02917777dc6bb9b6f3d7c7677ffadd228ae1b04b5f281ee410fe997f6ffc8b6e'
|
||
},
|
||
'memoize' : {
|
||
'description': `### memoize
|
||
|
||
Επιστρέφει the memoized (cached) function.
|
||
|
||
Create an empty cache by instantiating a new \`Map\` object.
|
||
Return a συνάρτηση which takes a single argument to be supplied to the memoized συνάρτηση by first checking if the function's output for that specific input value is already cached,ήstore and return it if not. The \`function\` keyword must be used in order to allow the memoized συνάρτηση to have its \`this\` context changed if necessary.
|
||
Allow access to the \`cache\` by setting it as a property on the returned function.
|
||
|
||
`,
|
||
'comments': [`// See the \`anagrams\` snippet.`,`// takes a long time`,`// returns virtually instantly since it's now cached`,`// The cached anagrams map`],
|
||
'hash': '90e3a88fc1d6657c0abad7ef8bf1d16d63ad79e0a3b3e3333b8d9113dd71b319'
|
||
},
|
||
'merge' : {
|
||
'description': `### merge
|
||
|
||
Δημιουργεί a new αντικείμενο from the combination of twoήmore objects.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` combined with \`Object.keys(obj)\` to iterate over all objects and keys.
|
||
Χρησιμοποιείται \`hasOwnProperty()\` and \`Array.concat()\` to append values for keys existing in multiple objects.
|
||
|
||
`,
|
||
'comments': [`// { a: [ { x: 2 }, { y: 4 }, { z: 3 } ], b: [ 1, 2, 3 ], c: 'foo' }`],
|
||
'hash': '826cc803746ea19eb0fcfe106f0311d42a5ec4eb55ab3cc5d21cbb903b0c8939'
|
||
},
|
||
'minBy' : {
|
||
'description': `### minBy
|
||
|
||
Επιστρέφει the minimum value of an array, after mapping each element to a value using the provided function.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to map each element to the value returned by \`fn\`, \`Math.min()\` to get the maximum value.
|
||
|
||
`,
|
||
'comments': [`// 2`,`// 2`],
|
||
'hash': '79fa8886b81fec87e6f66bca39c1f24e7dbbfc95f3a0f647d84b639f2097de83'
|
||
},
|
||
'minN' : {
|
||
'description': `### minN
|
||
|
||
Επιστρέφει the \`n\` minimum elements from the provided array. If \`n\` is greater thanήequal to the provided array's length, then return the original array(sorted in ascending order).
|
||
|
||
Χρησιμοποιείται \`Array.sort()\` combined with the spread operator (\`...\`) to create a shallow clone of the πίνακα and sort it in ascending order.
|
||
Χρησιμοποιείται \`Array.slice()\` to get the specified number of elements.
|
||
Omit the second argument, \`n\`, to get a one-element array.
|
||
|
||
`,
|
||
'comments': [`// [1]`,`// [1,2]`],
|
||
'hash': '4ee3bf1ab3e37719595ac57d8036d7fd98997b7da40d060c5e5dcb4efbe505e1'
|
||
},
|
||
'negate' : {
|
||
'description': `### negate
|
||
|
||
Negates a predicate function.
|
||
|
||
Take a predicate συνάρτηση and apply the not operator (\`!\`) to it with its arguments.
|
||
|
||
`,
|
||
'comments': [`// [ 1, 3, 5 ]`],
|
||
'hash': '8938f36bd51423282e19bf1d4547b8a8a1ebf1882abf7ec4e7ff371922e078e0'
|
||
},
|
||
'nthArg' : {
|
||
'description': `### nthArg
|
||
|
||
Δημιουργεί a συνάρτηση that gets the argument at index \`n\`. If \`n\` is negative, the nth argument from the end is returned.
|
||
|
||
Χρησιμοποιείται \`Array.slice()\` to get the desired argument at index \`n\`.
|
||
|
||
`,
|
||
'comments': [`// 3`,`// undefined`,`// 5`],
|
||
'hash': 'a460f755fb40d4a37f6d207f1164b1e76c76059143bff4e5dff76e82ba46ec92'
|
||
},
|
||
'nthElement' : {
|
||
'description': `### nthElement
|
||
|
||
Επιστρέφει the nth element of an array.
|
||
|
||
Χρησιμοποιείται \`Array.slice()\` to get an πίνακα containing the nth element at the first place.
|
||
If the index is out of bounds, return \`[]\`.
|
||
Omit the second argument, \`n\`, to get the first element of the array.
|
||
|
||
`,
|
||
'comments': [`// 'b'`,`// 'a'`],
|
||
'hash': '153905a03572367df0c41880e11216a53be071a133f74815a67b8bcd67eac404'
|
||
},
|
||
'objectFromPairs' : {
|
||
'description': `### objectFromPairs
|
||
|
||
Δημιουργεί an αντικείμενο from the given key-value pairs.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to create and combine key-value pairs.
|
||
|
||
`,
|
||
'comments': [`// {a: 1, b: 2}`],
|
||
'hash': 'ab43b5144f2d236fdab194c4522db8d477183a606fbb81da19d68f74913c917c'
|
||
},
|
||
'objectToPairs' : {
|
||
'description': `### objectToPairs
|
||
|
||
Δημιουργεί an πίνακα of key-value pair arrays from an object.
|
||
|
||
Χρησιμοποιείται \`Object.keys()\` and \`Array.map()\` to iterate over the object's keys and produce an πίνακα with key-value pairs.
|
||
|
||
`,
|
||
'comments': [`// [['a',1],['b',2]]`],
|
||
'hash': '9a61320908a1965f5834bc0187be7fb52897f545f03dc62c4dedeb47fcfbaf8b'
|
||
},
|
||
'observeMutations' : {
|
||
'description': `### observeMutations
|
||
|
||
Επιστρέφει a new MutationObserver and runs the provided callback for each mutation on the specified element.
|
||
|
||
Χρησιμοποιείται a [\`MutationObserver\`](https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver) to observe mutations on the given element.
|
||
Χρησιμοποιείται \`Array.forEach()\` to run the callback for each mutation that is observed.
|
||
Omit the third argument, \`options\`, to use the default [options](https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver#MutationObserverInit) (all \`true\`).
|
||
|
||
`,
|
||
'comments': [`//developer.mozilla.org/en-US/docs/Web/API/MutationObserver) to observe mutations on the given element.`,`//developer.mozilla.org/en-US/docs/Web/API/MutationObserver#MutationObserverInit) (all \`true\`).`,`// Logs all mutations that happen on the page`,`// Disconnects the observer and stops logging mutations on the page`],
|
||
'hash': '9c3846719bfb9316cb340a39f0ce5b85a5bda268515e079d014f28477f236f2f'
|
||
},
|
||
'off' : {
|
||
'description': `### off
|
||
|
||
Removes an event listener from an element.
|
||
|
||
Χρησιμοποιείται \`EventTarget.removeEventListener()\` to remove an event listener from an element.
|
||
Omit the fourth argument \`opts\` to use \`false\`ήspecify it based on the options used when the event listener was added.
|
||
|
||
`,
|
||
'comments': [`// no longer logs '!' upon clicking on the page`],
|
||
'hash': '613baa2166459b02d033323f517bd6a646eab362ac6ecb74841757353ac41482'
|
||
},
|
||
'omit' : {
|
||
'description': `### omit
|
||
|
||
Omits the key-value pairs corresponding to the given keys from an object.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\`, \`Array.filter()\` and \`Array.includes()\` to remove the provided keys.
|
||
Χρησιμοποιείται \`Array.reduce()\` to convert the filtered keys back to an αντικείμενο with the corresponding key-value pairs.
|
||
|
||
`,
|
||
'comments': [`// { 'a': 1, 'c': 3 }`],
|
||
'hash': 'a50a087ca63a6f9d68cb929e3f75545cbed4ee97f5748840ae1a81f8f2dee75f'
|
||
},
|
||
'omitBy' : {
|
||
'description': `### omitBy
|
||
|
||
Δημιουργεί an αντικείμενο composed of the properties the given συνάρτηση returns falsey for. The συνάρτηση is invoked with two arguments: (value, key).
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` and \`Array.filter()\`to remove the keys for which \`fn\` returns a truthy value.
|
||
Χρησιμοποιείται \`Array.reduce()\` to convert the filtered keys back to an αντικείμενο with the corresponding key-value pairs.
|
||
|
||
`,
|
||
'comments': [`// { b: '2' }`],
|
||
'hash': '2f396b91794c853304732568dab330e91f9182553b452268cb19941042087b98'
|
||
},
|
||
'on' : {
|
||
'description': `### on
|
||
|
||
Adds an event listener to an element with the ability to use event delegation.
|
||
|
||
Χρησιμοποιείται \`EventTarget.addEventListener()\` to add an event listener to an element. If there is a \`target\` property supplied to the options object, ensure the event target matches the target specified and then invoke the callback by supplying the correct \`this\` context.
|
||
Επιστρέφει a reference to the custom delegator function, in order to be possible to use with [\`off\`](#off).
|
||
Omit \`opts\` to default to non-delegation behavior and event bubbling.
|
||
|
||
`,
|
||
'comments': [`// logs '!' upon clicking the body`,`// logs '!' upon clicking a \`p\` element child of the body`,`// use capturing instead of bubbling`],
|
||
'hash': 'c5f26491c28670e971d9049b74ff79ed933a2d92ad29a117d324c131e8205be5'
|
||
},
|
||
'once' : {
|
||
'description': `### once
|
||
|
||
Ensures a συνάρτηση is called only once.
|
||
|
||
Utilizing a closure, use a flag, \`called\`, and set it to \`true\` once the συνάρτηση is called for the first time, preventing it from being called again. In order to allow the συνάρτηση to have its \`this\` context changed (such as in an event listener), the \`function\` keyword must be used, and the supplied συνάρτηση must have the context applied.
|
||
Allow the συνάρτηση to be supplied with an arbitrary number of ορίσματα using the rest/spread (\`...\`) operator.
|
||
|
||
`,
|
||
'comments': [`// document.body, MouseEvent`,`// only runs \`startApp\` once upon click`],
|
||
'hash': '60c1b3e83e55b2cef66ffc26f92f419998b1aff51c6194a176c35c20384930cb'
|
||
},
|
||
'onΧρησιμοποιείταιrInputChange' : {
|
||
'description': `### onΧρησιμοποιείταιrInputChange
|
||
|
||
Run the callback whenever the user input type changes (\`mouse\`ή\`touch\`). Χρησιμοποιείταιful for enabling/disabling code depending on the input device. This process is dynamic and works with hybrid devices (e.g. touchscreen laptops).
|
||
|
||
Χρησιμοποιείται two event listeners. Assume \`mouse\` input initially and bind a \`touchstart\` event listener to the document.
|
||
On \`touchstart\`, add a \`mousemove\` event listener to listen for two consecutive \`mousemove\` events firing within 20ms, using \`performance.now()\`.
|
||
Run the callback with the input type as an argument in either of these situations.
|
||
|
||
`,
|
||
'comments': [],
|
||
'hash': '8b40bbf8048d58d7b1f709af838ac2d50b7f345a6c799ad95861963e05481dff'
|
||
},
|
||
'orderBy' : {
|
||
'description': `### orderBy
|
||
|
||
Επιστρέφει a sorted πίνακα of objects ordered by properties and orders.
|
||
|
||
Χρησιμοποιείταιs \`Array.sort()\`, \`Array.reduce()\` on the \`props\` πίνακα with a default value of \`0\`, use πίνακα destructuring to swap the properties position depending on the order passed.
|
||
If no \`orders\` πίνακα is passed it sort by \`'asc'\` by default.
|
||
|
||
`,
|
||
'comments': [`// [{name: 'barney', age: 36}, {name: 'fred', age: 48}, {name: 'fred', age: 40}]`,`// [{name: 'barney', age: 36}, {name: 'fred', age: 40}, {name: 'fred', age: 48}]`],
|
||
'hash': '266a08f6be096e96c3a744709a2fd2e21827857eda5a6884155e04e49beb5e65'
|
||
},
|
||
'over' : {
|
||
'description': `### over
|
||
|
||
Δημιουργεί a συνάρτηση that invokes each provided συνάρτηση with the ορίσματα it receives and returns the results.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` and \`Function.apply()\` to apply each συνάρτηση to the given arguments.
|
||
|
||
`,
|
||
'comments': [`// [1,5]`],
|
||
'hash': '9a8f4fea12aed02d983e980befbffefc23bdfc6c736e0a2647f88e4aa2700ed7'
|
||
},
|
||
'overArgs' : {
|
||
'description': `### overArgs
|
||
|
||
Δημιουργεί a συνάρτηση that invokes the provided συνάρτηση with its ορίσματα transformed.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to apply \`transforms\` to \`args\` in combination with the spread operator (\`...\`) to pass the transformed ορίσματα to \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// [81, 6]`],
|
||
'hash': '3264685ac827f036d70317c328dd87f21a3f73e9731da27e3bffcab4b421bd94'
|
||
},
|
||
'palindrome' : {
|
||
'description': `### palindrome
|
||
|
||
Επιστρέφει \`true\` if the given string is a palindrome, \`false\` otherwise.
|
||
|
||
Convert string \`String.toLowerCase()\` and use \`String.replace()\` to remove non-alphanumeric characters from it.
|
||
Then, \`String.split('')\` into individual characters, \`Array.reverse()\`, \`String.join('')\` and compare to the original, unreversed string, after converting it \`String.tolowerCase()\`.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': '4a84be9d1a9332a9c9d22006ff4ed45c94a13e31a71b873d37d68d69cf1abca2'
|
||
},
|
||
'parseCookie' : {
|
||
'description': `### parseCookie
|
||
|
||
Parse an HTTP Cookie header string and return an αντικείμενο of all cookie name-value pairs.
|
||
|
||
Χρησιμοποιείται \`String.split(';')\` to separate key-value pairs from each other.
|
||
Χρησιμοποιείται \`Array.map()\` and \`String.split('=')\` to separate keys from values in each pair.
|
||
Χρησιμοποιείται \`Array.reduce()\` and \`decodeURIComponent()\` to create an αντικείμενο with all key-value pairs.
|
||
|
||
`,
|
||
'comments': [`// { foo: 'bar', equation: 'E=mc^2' }`],
|
||
'hash': '6f22c6f53079b8a66725eabb27a7eabdc210fb6256d8bbae9cc6a0fbef96faac'
|
||
},
|
||
'partial' : {
|
||
'description': `### partial
|
||
|
||
Δημιουργεί a συνάρτηση that invokes \`fn\` with \`partials\` prepended to the ορίσματα it receives.
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`) to prepend \`partials\` to the list of ορίσματα of \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// 'Hello John!'`],
|
||
'hash': 'd3827db0162532e28149d341c08b1d2ae72f36b0b3b480407ef7dca211c9abb1'
|
||
},
|
||
'partialRight' : {
|
||
'description': `### partialRight
|
||
|
||
Δημιουργεί a συνάρτηση that invokes \`fn\` with \`partials\` appended to the ορίσματα it receives.
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`) to append \`partials\` to the list of ορίσματα of \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// 'Hello John!'`],
|
||
'hash': 'd7e22ab0e1ce71ae47687441dd234141f2a2f70fab5f3a6b59d7015e924e517a'
|
||
},
|
||
'partition' : {
|
||
'description': `### partition
|
||
|
||
Groups the elements into two arrays, depending on the provided function's truthiness for each element.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to create an πίνακα of two arrays.
|
||
Χρησιμοποιείται \`Array.push()\` to add elements for which \`fn\` returns \`true\` to the first πίνακα and elements for which \`fn\` returns \`false\` to the second one.
|
||
|
||
`,
|
||
'comments': [`// [[{ 'user': 'fred', 'age': 40, 'active': true }],[{ 'user': 'barney', 'age': 36, 'active': false }]]`],
|
||
'hash': 'e1a4fb7bf8b719a0e43b5c4b765c3989b5a856311602023e8750f1d0a018f911'
|
||
},
|
||
'percentile' : {
|
||
'description': `### percentile
|
||
|
||
Χρησιμοποιείταιs the percentile formula to calculate how many numbers in the given πίνακα are lessήequal to the given value.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to calculate how many numbers are below the value and how many are the same value and apply the percentile formula.
|
||
|
||
`,
|
||
'comments': [`// 55`],
|
||
'hash': 'c7d7b7e8ba58d26a2a1f640c859ffc85ad128b0de5172a99e104e75be2999ebd'
|
||
},
|
||
'pick' : {
|
||
'description': `### pick
|
||
|
||
Picks the key-value pairs corresponding to the given keys from an object.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to convert the filtered/picked keys back to an αντικείμενο with the corresponding key-value pairs if the key exists in the object.
|
||
|
||
`,
|
||
'comments': [`// { 'a': 1, 'c': 3 }`],
|
||
'hash': 'd8287e0d701b51b904f5772908509223c30a47cf9d33dc5ae606001d98ddf73d'
|
||
},
|
||
'pickBy' : {
|
||
'description': `### pickBy
|
||
|
||
Δημιουργεί an αντικείμενο composed of the properties the given συνάρτηση returns truthy for. The συνάρτηση is invoked with two arguments: (value, key).
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` and \`Array.filter()\`to remove the keys for which \`fn\` returns a falsey value.
|
||
Χρησιμοποιείται \`Array.reduce()\` to convert the filtered keys back to an αντικείμενο with the corresponding key-value pairs.
|
||
|
||
`,
|
||
'comments': [`// { 'a': 1, 'c': 3 }`],
|
||
'hash': '6eb05d39c09752618bd51f4d98b90f4163d8a297f1e60e37aca10d7cd81099a7'
|
||
},
|
||
'pipeAsyncFunctions' : {
|
||
'description': `### pipeAsyncFunctions
|
||
|
||
Performs left-to-right συνάρτηση composition for asynchronous functions.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` with the spread operator (\`...\`) to perform left-to-right συνάρτηση composition using \`Promise.then()\`.
|
||
The functions can return a combination of: simple values, \`Promise\`'s,ήthey can be defined as \`async\` ones returning through \`await\`.
|
||
All functions must be unary.
|
||
|
||
`,
|
||
'comments': [`// 15 (after one second)`],
|
||
'hash': '52363ec2842422126ca0544d9982603afd8ae4b8bf315d76c17690c91eb06e0f'
|
||
},
|
||
'pipeFunctions' : {
|
||
'description': `### pipeFunctions
|
||
|
||
Performs left-to-right συνάρτηση composition.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` with the spread operator (\`...\`) to perform left-to-right συνάρτηση composition.
|
||
The first (leftmost) συνάρτηση can accept oneήmore arguments; the remaining functions must be unary.
|
||
|
||
`,
|
||
'comments': [`// 15`],
|
||
'hash': '80753dd7af0282c9fdf0ceb615b8d7dbdcbcf41aa4c366db209672a79828c955'
|
||
},
|
||
'pluralize' : {
|
||
'description': `### pluralize
|
||
|
||
Επιστρέφει the singularήplural form of the word based on the input number. If the first argument is an \`object\`, it will use a closure by returning a συνάρτηση that can auto-pluralize words that don't simply end in \`s\` if the supplied dictionary contains the word.
|
||
|
||
If \`num\` is either \`-1\`ή\`1\`, return the singular form of the word. If \`num\` is any other number, return the plural form. Omit the third argument to use the default of the singular word + \`s\`,ήsupply a custom pluralized word when necessary. If the first argument is an \`object\`, utilize a closure by returning a συνάρτηση which can use the supplied dictionary to resolve the correct plural form of the word.
|
||
|
||
`,
|
||
'comments': [`// 'apples'`,`// 'apple'`,`// 'apples'`,`// 'people'`,`// 'people'`],
|
||
'hash': '68a521d9ba019afbdd726791f0a2aaab948ad142f3b64b657e5a88239f9e6cb8'
|
||
},
|
||
'powerset' : {
|
||
'description': `### powerset
|
||
|
||
Επιστρέφει the powerset of a given πίνακα of numbers.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` combined with \`Array.map()\` to iterate over elements and combine into an πίνακα containing all combinations.
|
||
|
||
`,
|
||
'comments': [`// [[], [1], [2], [2,1]]`],
|
||
'hash': '3a6a31847448422578e579e973eaa09481e361b871f069d86a6656eb01bfe302'
|
||
},
|
||
'prettyBytes' : {
|
||
'description': `### prettyBytes
|
||
|
||
Μετατρέπει a number in bytes to a human-readable string.
|
||
|
||
Χρησιμοποιείται an πίνακα dictionary of units to be accessed based on the exponent.
|
||
Χρησιμοποιείται \`Number.toPrecision()\` to truncate the number to a certain number of digits.
|
||
Return the prettified string by building it up, taking into account the supplied options and whether it is negativeήnot.
|
||
Omit the second argument, \`precision\`, to use a default precision of \`3\` digits.
|
||
Omit the third argument, \`addSpace\`, to add space between the number and unit by default.
|
||
|
||
`,
|
||
'comments': [`// "1 KB"`,`// "-27.145 GB"`,`// "123MB"`],
|
||
'hash': '08cbd19f78bf3794926f6c3d138587567efcff45dd176d9d4f76466be174f99b'
|
||
},
|
||
'primes' : {
|
||
'description': `### primes
|
||
|
||
Generates primes up to a given number, using the Sieve of Eratosthenes.
|
||
|
||
Generate an πίνακα from \`2\` to the given number. Χρησιμοποιείται \`Array.filter()\` to filter out the values divisible by any number from \`2\` to the square root of the provided number.
|
||
|
||
`,
|
||
'comments': [`// [2,3,5,7]`],
|
||
'hash': '9c1be212a3c197ecfc3427fb7cf85724f85c77b1a82f785f492ac5b016e0b3de'
|
||
},
|
||
'promisify' : {
|
||
'description': `### promisify
|
||
|
||
Μετατρέπει an asynchronous συνάρτηση to return a promise.
|
||
|
||
Χρησιμοποιείται currying to return a συνάρτηση returning a \`Promise\` that calls the original function.
|
||
Χρησιμοποιείται the \`...rest\` operator to pass in all the parameters.
|
||
|
||
*In Node 8+, you can use [\`util.promisify\`](https://nodejs.org/api/util.html#util_util_promisify_original)*
|
||
|
||
`,
|
||
'comments': [`//nodejs.org/api/util.html#util_util_promisify_original)*`,`// // Promise resolves after 2s`],
|
||
'hash': 'ac038beb88d33e2605efddd8ff96031cd8108b4a3836614ebdd38e1f0865539e'
|
||
},
|
||
'pull' : {
|
||
'description': `### pull
|
||
|
||
Mutates the original πίνακα to filter out the values specified.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.includes()\` to pull out the values that are not needed.
|
||
Χρησιμοποιείται \`Array.length = 0\` to mutate the passed in an πίνακα by resetting it's length to zero and \`Array.push()\` to re-populate it with only the pulled values.
|
||
|
||
_(For a snippet that does not mutate the original πίνακα see [\`without\`](#without))_
|
||
|
||
`,
|
||
'comments': [`// myArray = [ 'b', 'b' ]`],
|
||
'hash': 'd8b2ac76b7ea21aa33bdd47642b7eb55caa249ce81633bfff5ddf247aead45e8'
|
||
},
|
||
'pullAtIndex' : {
|
||
'description': `### pullAtIndex
|
||
|
||
Mutates the original πίνακα to filter out the values at the specified indexes.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.includes()\` to pull out the values that are not needed.
|
||
Χρησιμοποιείται \`Array.length = 0\` to mutate the passed in an πίνακα by resetting it's length to zero and \`Array.push()\` to re-populate it with only the pulled values.
|
||
Χρησιμοποιείται \`Array.push()\` to keep track of pulled values
|
||
|
||
`,
|
||
'comments': [`// myArray = [ 'a', 'c' ] , pulled = [ 'b', 'd' ]`],
|
||
'hash': '8962d4202f31d5bb26a63d1b8f0e50cbaf10c5c94d9a8ddc93a957ae5dd78fd1'
|
||
},
|
||
'pullAtValue' : {
|
||
'description': `### pullAtValue
|
||
|
||
Mutates the original πίνακα to filter out the values specified. Επιστρέφει the removed elements.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.includes()\` to pull out the values that are not needed.
|
||
Χρησιμοποιείται \`Array.length = 0\` to mutate the passed in an πίνακα by resetting it's length to zero and \`Array.push()\` to re-populate it with only the pulled values.
|
||
Χρησιμοποιείται \`Array.push()\` to keep track of pulled values
|
||
|
||
`,
|
||
'comments': [`// myArray = [ 'a', 'c' ] , pulled = [ 'b', 'd' ]`],
|
||
'hash': '68b9e5821aeea26859007f3b1664c5a3da0d1ccec8ddee5864964bcc470afdd4'
|
||
},
|
||
'pullBy' : {
|
||
'description': `### pullBy
|
||
|
||
Mutates the original πίνακα to filter out the values specified, based on a given iterator function.
|
||
|
||
Check if the last argument provided in a function.
|
||
Χρησιμοποιείται \`Array.map()\` to apply the iterator συνάρτηση \`fn\` to all πίνακα elements.
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.includes()\` to pull out the values that are not needed.
|
||
Χρησιμοποιείται \`Array.length = 0\` to mutate the passed in an πίνακα by resetting it's length to zero and \`Array.push()\` to re-populate it with only the pulled values.
|
||
|
||
`,
|
||
'comments': [`// myArray = [{ x: 2 }]`],
|
||
'hash': '71a41aef1aefdde0cc345d10347ef6c9a998868f219bed854218c5f3b47f573e'
|
||
},
|
||
'randomHexColorCode' : {
|
||
'description': `### randomHexColorCode
|
||
|
||
Generates a random hexadecimal color code.
|
||
|
||
Χρησιμοποιείται \`Math.random\` to generate a random 24-bit(6x4bits) hexadecimal number. Χρησιμοποιείται bit shifting and then convert it to an hexadecimal String using \`toString(16)\`.
|
||
|
||
`,
|
||
'comments': [`// "#e34155"`],
|
||
'hash': '6af176c0007886231038d513047c089a03200647c960ecb27b7b624e2629c913'
|
||
},
|
||
'randomIntArrayInRange' : {
|
||
'description': `### randomIntArrayInRange
|
||
|
||
Επιστρέφει an πίνακα of n random integers in the specified range.
|
||
|
||
Χρησιμοποιείται \`Array.from()\` to create an empty πίνακα of the specific length, \`Math.random()\` to generate a random number and map it to the desired range, using \`Math.floor()\` to make it an integer.
|
||
|
||
`,
|
||
'comments': [`// [ 34, 14, 27, 17, 30, 27, 20, 26, 21, 14 ]`],
|
||
'hash': '0e2974d577b4265fee1d9996d563571c50baed64300e7e26a58e5afe2460d606'
|
||
},
|
||
'randomIntegerInRange' : {
|
||
'description': `### randomIntegerInRange
|
||
|
||
Επιστρέφει a random integer in the specified range.
|
||
|
||
Χρησιμοποιείται \`Math.random()\` to generate a random number and map it to the desired range, using \`Math.floor()\` to make it an integer.
|
||
|
||
`,
|
||
'comments': [`// 2`],
|
||
'hash': '78b3f180ecba4d169a3c76ba2c9d76cde5646f429a66e13733dfdae1a0506007'
|
||
},
|
||
'randomNumberInRange' : {
|
||
'description': `### randomNumberInRange
|
||
|
||
Επιστρέφει a random number in the specified range.
|
||
|
||
Χρησιμοποιείται \`Math.random()\` to generate a random value, map it to the desired range using multiplication.
|
||
|
||
`,
|
||
'comments': [`// 6.0211363285087005`],
|
||
'hash': '6878158127b623c4ab840fe1b40214a580f9f747ce38530fd3dfc3af38af6c8f'
|
||
},
|
||
'readFileLines' : {
|
||
'description': `### readFileLines
|
||
|
||
Επιστρέφει an πίνακα of lines from the specified file.
|
||
|
||
Χρησιμοποιείται \`readFileSync\` συνάρτηση in \`fs\` node package to create a \`Buffer\` from a file.
|
||
convert buffer to string using \`toString(encoding)\` function.
|
||
creating an πίνακα from contents of file by \`split\`ing file content line by line (each \`\n\`).
|
||
|
||
`,
|
||
'comments': [`// ['line1', 'line2', 'line3']`],
|
||
'hash': 'a9f5f5500cf6380c2bb653744df639951a76c206d6228de6c178a686ffff2de5'
|
||
},
|
||
'rearg' : {
|
||
'description': `### rearg
|
||
|
||
Δημιουργεί a συνάρτηση that invokes the provided συνάρτηση with its ορίσματα arranged according to the specified indexes.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` and \`Array.indexOf()\` to reorder ορίσματα based on \`indexes\` in combination with the spread operator (\`...\`) to pass the transformed ορίσματα to \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// ['a', 'b', 'c']`],
|
||
'hash': '5b85a99357428eee2d57fb2876db6e9d78efb19e8c16670790fcc821a910984b'
|
||
},
|
||
'redirect' : {
|
||
'description': `### redirect
|
||
|
||
Redirects to a specified URL.
|
||
|
||
Χρησιμοποιείται \`window.location.href\`ή\`window.location.replace()\` to redirect to \`url\`.
|
||
Pass a second argument to simulate a link click (\`true\` - default)ήan HTTP redirect (\`false\`).
|
||
|
||
`,
|
||
'comments': [`//google.com');`],
|
||
'hash': '1d4c683ca10407fbfa443edadfd4e0841899b0ba492f50535e8cd3bc4ee77e19'
|
||
},
|
||
'reducedFilter' : {
|
||
'description': `### reducedFilter
|
||
|
||
Filter an πίνακα of objects based on a condition while also filtering out unspecified keys.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` to filter the πίνακα based on the predicate \`fn\` so that it returns the objects for which the condition returned a truthy value.
|
||
On the filtered array, use \`Array.map()\` to return the new αντικείμενο using \`Array.reduce()\` to filter out the keys which were not supplied as the \`keys\` argument.
|
||
|
||
`,
|
||
'comments': [`// [{ id: 2, name: 'mike'}]`],
|
||
'hash': 'fe7eaeaa58db860461ce1c2cb8a98fb59ef1ea90084e7775ef544cbbdb9707f2'
|
||
},
|
||
'reduceSuccessive' : {
|
||
'description': `### reduceSuccessive
|
||
|
||
Applies a συνάρτηση against an accumulator and each element in the πίνακα (from left to right), returning an πίνακα of successively reduced values.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to apply the given συνάρτηση to the given array, storing each new result.
|
||
|
||
`,
|
||
'comments': [`// [0, 1, 3, 6, 10, 15, 21]`],
|
||
'hash': '5866ff21a2aa6f7cf2980a3da4b1bddb9e4d6316e9f36efe108cc298af1e8d42'
|
||
},
|
||
'reduceWhich' : {
|
||
'description': `### reduceWhich
|
||
|
||
Επιστρέφει the minimum/maximum value of an array, after applying the provided συνάρτηση to set comparing rule.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` in combination with the \`comparator\` συνάρτηση to get the appropriate element in the array.
|
||
You can omit the second parameter, \`comparator\`, to use the default one that returns the minimum element in the array.
|
||
|
||
`,
|
||
'comments': [`// 1`,`// 3`,`// {name: "Lucy", age: 9}`],
|
||
'hash': 'ca952b8690c74fe12ce0baa6c61279f267b68794e59380a7c6b586207d4e3d30'
|
||
},
|
||
'remove' : {
|
||
'description': `### remove
|
||
|
||
Removes elements from an πίνακα for which the given συνάρτηση returns \`false\`.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` to find πίνακα elements that return truthy values and \`Array.reduce()\` to remove elements using \`Array.splice()\`.
|
||
The \`func\` is invoked with three ορίσματα (\`value, index, array\`).
|
||
|
||
`,
|
||
'comments': [`// [2, 4]`],
|
||
'hash': '60d3d3a8dc9249f1a98a0aea91e199c089825afa9c51d2a43fd79794f0f070dc'
|
||
},
|
||
'removeNonASCII' : {
|
||
'description': `### removeNonASCII
|
||
|
||
Removes non-printable ASCII characters.
|
||
|
||
Χρησιμοποιείται a regular expression to remove non-printable ASCII characters.
|
||
|
||
`,
|
||
'comments': [`// 'lorem-ipsum'`],
|
||
'hash': 'e16f5691d22aa4cd48e1b64f33ae50f973fffa168264c15c4602c595b9fdfec7'
|
||
},
|
||
'reverseString' : {
|
||
'description': `### reverseString
|
||
|
||
Reverses a string.
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`) and \`Array.reverse()\` to reverse the order of the characters in the string.
|
||
Combine characters to get a string using \`String.join('')\`.
|
||
|
||
`,
|
||
'comments': [`// 'raboof'`],
|
||
'hash': '100fbfed8e5598b00cd6d324c8b17ed4b5ee80469e49d9e27b7e9290d893ecb9'
|
||
},
|
||
'RGBToHex' : {
|
||
'description': `### RGBToHex
|
||
|
||
Μετατρέπει the values of RGB components to a color code.
|
||
|
||
Convert given RGB parameters to hexadecimal string using bitwise left-shift operator (\`<<\`) and \`toString(16)\`, then \`String.padStart(6,'0')\` to get a 6-digit hexadecimal value.
|
||
|
||
`,
|
||
'comments': [`// 'ffa501'`],
|
||
'hash': '0b3bc3119ca3ec80882c1413a5f5e47612233e075af6e0e5939f27da28e34f96'
|
||
},
|
||
'round' : {
|
||
'description': `### round
|
||
|
||
Rounds a number to a specified amount of digits.
|
||
|
||
Χρησιμοποιείται \`Math.round()\` and template literals to round the number to the specified number of digits.
|
||
Omit the second argument, \`decimals\` to round to an integer.
|
||
|
||
`,
|
||
'comments': [`// 1.01`],
|
||
'hash': 'd4f32a82cd93e9abc5d7222610eed8f6a46a7ebbf4eed4f57035625947890a4a'
|
||
},
|
||
'runAsync' : {
|
||
'description': `### runAsync
|
||
|
||
Runs a συνάρτηση in a separate thread by using a [Web Worker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers), allowing long running functions to not block the UI.
|
||
|
||
Create a new \`Worker\` using a \`Blob\` αντικείμενο URL, the contents of which should be the stringified version of the supplied function.
|
||
Immediately post the return value of calling the συνάρτηση back.
|
||
Return a promise, listening for \`onmessage\` and \`onerror\` events and resolving the data posted back from the worker,ήthrowing an error.
|
||
|
||
`,
|
||
'comments': [`//developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers), allowing long running functions to not block the UI.`,`// 209685000000`,`// 1000`,`// 'undefined'`],
|
||
'hash': '8342955273acd8a377c9786fd6a504da3d6d4482d5f5a4222451a3520ce5fd6a'
|
||
},
|
||
'runPromisesInSeries' : {
|
||
'description': `### runPromisesInSeries
|
||
|
||
Runs an πίνακα of promises in series.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to create a promise chain, where each promise returns the next promise when resolved.
|
||
|
||
`,
|
||
'comments': [`// Executes each promise sequentially, taking a total of 3 seconds to complete`],
|
||
'hash': '774992e29bd2e84cb77cf84625cb49427b396265f929f222ee5be917eb3feb51'
|
||
},
|
||
'sample' : {
|
||
'description': `### sample
|
||
|
||
Επιστρέφει a random element from an array.
|
||
|
||
Χρησιμοποιείται \`Math.random()\` to generate a random number, multiply it by \`length\` and round it of to the nearest whole number using \`Math.floor()\`.
|
||
This method also works with strings.
|
||
|
||
`,
|
||
'comments': [`// 9`],
|
||
'hash': 'b05e5107fb5291fdc235d60e9e5f956858aa89bdf4a31b14d7af00f107c83f0c'
|
||
},
|
||
'sampleSize' : {
|
||
'description': `### sampleSize
|
||
|
||
Gets \`n\` random elements at unique keys from \`array\` up to the size of \`array\`.
|
||
|
||
Shuffle the πίνακα using the [Fisher-Yates algorithm](https://github.com/chalarangelo/30-seconds-of-code#shuffle).
|
||
Χρησιμοποιείται \`Array.slice()\` to get the first \`n\` elements.
|
||
Omit the second argument, \`n\` to get only one element at random from the array.
|
||
|
||
`,
|
||
'comments': [`//github.com/chalarangelo/30-seconds-of-code#shuffle).`,`// [3,1]`,`// [2,3,1]`],
|
||
'hash': '5cc2e02485d627d9dd4c254292aae0277265126f92974719954f30a5f406ef17'
|
||
},
|
||
'scrollToTop' : {
|
||
'description': `### scrollToTop
|
||
|
||
Smooth-scrolls to the top of the page.
|
||
|
||
Get distance from top using \`document.documentElement.scrollTop\`ή\`document.body.scrollTop\`.
|
||
Scroll by a fraction of the distance from the top. Χρησιμοποιείται \`window.requestAnimationFrame()\` to animate the scrolling.
|
||
|
||
`,
|
||
'comments': [],
|
||
'hash': 'cc386ab65d09fc0e3d56ae9d64eacfd1815cbd862b376b67857d26735a0c4f4a'
|
||
},
|
||
'sdbm' : {
|
||
'description': `### sdbm
|
||
|
||
Hashes the input string into a whole number.
|
||
|
||
Χρησιμοποιείται \`String.split('')\` and \`Array.reduce()\` to create a hash of the input string, utilizing bit shifting.
|
||
|
||
`,
|
||
'comments': [`// -3521204949`],
|
||
'hash': '24ef18cf8da4d2129dac1be013bd68c058333cb527938571c594ff400639cc89'
|
||
},
|
||
'serializeCookie' : {
|
||
'description': `### serializeCookie
|
||
|
||
Serialize a cookie name-value pair into a Set-Cookie header string.
|
||
|
||
Χρησιμοποιείται template literals and \`encodeURIComponent()\` to create the appropriate string.
|
||
|
||
`,
|
||
'comments': [`// 'foo=bar'`],
|
||
'hash': 'd00538ab5aba3ac223daa0e5301037622296acab3127eaca3066870570709f1a'
|
||
},
|
||
'setStyle' : {
|
||
'description': `### setStyle
|
||
|
||
Sets the value of a CSS rule for the specified element.
|
||
|
||
Χρησιμοποιείται \`element.style\` to set the value of the CSS rule for the specified element to \`val\`.
|
||
|
||
`,
|
||
'comments': [`// The first <p> element on the page will have a font-size of 20px`],
|
||
'hash': '8c69204b5c26d9e05eeba2b4f3f0b8252d6a98161da34c71b19eeb387e5443a2'
|
||
},
|
||
'shallowClone' : {
|
||
'description': `### shallowClone
|
||
|
||
Δημιουργεί a shallow clone of an object.
|
||
|
||
Χρησιμοποιείται \`Object.assign()\` and an empty αντικείμενο (\`{}\`) to create a shallow clone of the original.
|
||
|
||
`,
|
||
'comments': [`// a !== b`],
|
||
'hash': '54d410e1b4dfabeed00abfa49d2f0f2765c190e18d08438f5f70e0ff48c6833e'
|
||
},
|
||
'show' : {
|
||
'description': `### show
|
||
|
||
Shows all the elements specified.
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`) and \`Array.forEach()\` to clear the \`display\` property for each element specified.
|
||
|
||
`,
|
||
'comments': [`// Shows all <img> elements on the page`],
|
||
'hash': 'fdead8b9b296bd35fa989791cfc576da2cdfd01121d3d00e0a96ed09557e1a91'
|
||
},
|
||
'shuffle' : {
|
||
'description': `### shuffle
|
||
|
||
Randomizes the order of the values of an array, returning a new array.
|
||
|
||
Χρησιμοποιείταιs the [Fisher-Yates algorithm](https://github.com/chalarangelo/30-seconds-of-code#shuffle) to reorder the elements of the array.
|
||
|
||
`,
|
||
'comments': [`//github.com/chalarangelo/30-seconds-of-code#shuffle) to reorder the elements of the array.`,`// [2,3,1], foo = [1,2,3]`],
|
||
'hash': '65c945a0bfa2f4ab4d882055cf8ba33d27b32a3a9431dadefe9abf784d080fd5'
|
||
},
|
||
'similarity' : {
|
||
'description': `### similarity
|
||
|
||
Επιστρέφει an πίνακα of elements that appear in both arrays.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` to remove values that are not part of \`values\`, determined using \`Array.includes()\`.
|
||
|
||
`,
|
||
'comments': [`// [1,2]`],
|
||
'hash': 'bb974be5244001acd3b49984f5362a12c4358a74974a8f0fa3e5a3fa6e06d17b'
|
||
},
|
||
'size' : {
|
||
'description': `### size
|
||
|
||
Get size of arrays, objectsήstrings.
|
||
|
||
Get type of \`val\` (\`array\`, \`object\`ή\`string\`).
|
||
Χρησιμοποιείται \`length\` property for arrays.
|
||
Χρησιμοποιείται \`length\`ή\`size\` value if availableήnumber of keys for objects.
|
||
Χρησιμοποιείται \`size\` of a [\`Blob\` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from \`val\` for strings.
|
||
|
||
Split strings into πίνακα of characters with \`split('')\` and return its length.
|
||
|
||
`,
|
||
'comments': [`//developer.mozilla.org/en-US/docs/Web/API/Blob) created from \`val\` for strings.`,`// 5`,`// 4`,`// 3`],
|
||
'hash': '3e220ee4374848c9d59477b7bd113b35a21064aaec40cfb5fcf6a8ee720f14f0'
|
||
},
|
||
'sleep' : {
|
||
'description': `### sleep
|
||
|
||
Delays the execution of an asynchronous function.
|
||
|
||
Delay executing part of an \`async\` function, by putting it to sleep, returning a \`Promise\`.
|
||
|
||
`,
|
||
'comments': [],
|
||
'hash': '3c3bcba169002b447bfd34cff40ca430c8eb470a09d8dbddbb939c9ef8515921'
|
||
},
|
||
'sortCharactersInString' : {
|
||
'description': `### sortCharactersInString
|
||
|
||
Alphabetically sorts the characters in a string.
|
||
|
||
Χρησιμοποιείται the spread operator (\`...\`), \`Array.sort()\` and \`String.localeCompare()\` to sort the characters in \`str\`, recombine using \`String.join('')\`.
|
||
|
||
`,
|
||
'comments': [`// 'aabbceg'`],
|
||
'hash': '79d6f6019e15d5bce0ad50eb3790db8a321271f5e37117cd57c8a9ef0637cbc3'
|
||
},
|
||
'sortedIndex' : {
|
||
'description': `### sortedIndex
|
||
|
||
Επιστρέφει the lowest index at which value should be inserted into πίνακα in order to maintain its sort order.
|
||
|
||
Check if the πίνακα is sorted in descending order (loosely).
|
||
Χρησιμοποιείται \`Array.findIndex()\` to find the appropriate index where the element should be inserted.
|
||
|
||
`,
|
||
'comments': [`// 1`,`// 1`],
|
||
'hash': 'f71ff3e3dd1af415d232b7fc77f380495286673603ea267ccd815c9cef81af8e'
|
||
},
|
||
'sortedIndexBy' : {
|
||
'description': `### sortedIndexBy
|
||
|
||
Επιστρέφει the lowest index at which value should be inserted into πίνακα in order to maintain its sort order, based on a provided iterator function.
|
||
|
||
Check if the πίνακα is sorted in descending order (loosely).
|
||
Χρησιμοποιείται \`Array.findIndex()\` to find the appropriate index where the element should be inserted, based on the iterator συνάρτηση \`fn\`.
|
||
|
||
`,
|
||
'comments': [`// 0`],
|
||
'hash': '143b847ad0bc2897c2099653a7f43ca95d52306c5a7d073e91578170a73e0498'
|
||
},
|
||
'sortedLastIndex' : {
|
||
'description': `### sortedLastIndex
|
||
|
||
Επιστρέφει the highest index at which value should be inserted into πίνακα in order to maintain its sort order.
|
||
|
||
Check if the πίνακα is sorted in descending order (loosely).
|
||
Χρησιμοποιείται \`Array.map()\` to map each element to an πίνακα with its index and value.
|
||
Χρησιμοποιείται \`Array.reverse()\` and \`Array.findIndex()\` to find the appropriate last index where the element should be inserted.
|
||
|
||
`,
|
||
'comments': [`// 3`],
|
||
'hash': 'a3d6e006f72169254081eb3ffe14d7e17208f6b809cb18ebffff059fe94b1a73'
|
||
},
|
||
'sortedLastIndexBy' : {
|
||
'description': `### sortedLastIndexBy
|
||
|
||
Επιστρέφει the highest index at which value should be inserted into πίνακα in order to maintain its sort order, based on a provided iterator function.
|
||
|
||
Check if the πίνακα is sorted in descending order (loosely).
|
||
Χρησιμοποιείται \`Array.reverse()\` and \`Array.findIndex()\` to find the appropriate last index where the element should be inserted, based on the iterator συνάρτηση \`fn\`..
|
||
|
||
`,
|
||
'comments': [`// 1`],
|
||
'hash': '956e42540442c922f21383528cac62b34711ab910416eb18f0b5beacc39662f0'
|
||
},
|
||
'splitLines' : {
|
||
'description': `### splitLines
|
||
|
||
Splits a multiline string into an πίνακα of lines.
|
||
|
||
Χρησιμοποιείται \`String.split()\` and a regular expression to match line breaks and create an array.
|
||
|
||
`,
|
||
'comments': [`// ['This', 'is a', 'multiline', 'string.' , '']`],
|
||
'hash': '50c743b336e91f39d93d065b36d86e7d25df053fa2a87b0ee0cbdf5b71aa77df'
|
||
},
|
||
'spreadOver' : {
|
||
'description': `### spreadOver
|
||
|
||
Takes a variadic συνάρτηση and returns a closure that accepts an πίνακα of ορίσματα to map to the inputs of the function.
|
||
|
||
Χρησιμοποιείται closures and the spread operator (\`...\`) to map the πίνακα of ορίσματα to the inputs of the function.
|
||
|
||
`,
|
||
'comments': [`// 3`],
|
||
'hash': '9a79940f01badd37efb5156b8e3d220c85601c99a6908b79fe9508d0cd4d8ff5'
|
||
},
|
||
'standardDeviation' : {
|
||
'description': `### standardDeviation
|
||
|
||
Επιστρέφει the standard deviation of an πίνακα of numbers.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to calculate the mean, variance and the sum of the variance of the values, the variance of the values, then
|
||
determine the standard deviation.
|
||
You can omit the second argument to get the sample standard deviationήset it to \`true\` to get the population standard deviation.
|
||
|
||
`,
|
||
'comments': [`// 13.284434142114991 (sample)`,`// 12.29899614287479 (population)`],
|
||
'hash': '4b7af7c22167951b8d08b5299d77da7878c29ef2814f6861eb105b8a8b575205'
|
||
},
|
||
'stripHTMLTags' : {
|
||
'description': `### stripHTMLTags
|
||
|
||
Removes HTML/XML tags from string.
|
||
|
||
Χρησιμοποιείται a regular expression to remove HTML/XML tags from a string.
|
||
|
||
`,
|
||
'comments': [`// 'lorem ipsum'`],
|
||
'hash': 'ee2f284cf513dc1d61b4d366698555c240131d5fe8fc17bd19a4cf055091ce58'
|
||
},
|
||
'sum' : {
|
||
'description': `### sum
|
||
|
||
Επιστρέφει the sum of twoήmore numbers/arrays.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\` to add each value to an accumulator, initialized with a value of \`0\`.
|
||
|
||
`,
|
||
'comments': [`// 10`],
|
||
'hash': '2cf7eb027c7f65533d9b4047c5ad69d0143327a3aa1b2d6b0691edce12f6e08e'
|
||
},
|
||
'sumBy' : {
|
||
'description': `### sumBy
|
||
|
||
Επιστρέφει the sum of an array, after mapping each element to a value using the provided function.
|
||
|
||
Χρησιμοποιείται \`Array.map()\` to map each element to the value returned by \`fn\`, \`Array.reduce()\` to add each value to an accumulator, initialized with a value of \`0\`.
|
||
|
||
`,
|
||
'comments': [`// 20`,`// 20`],
|
||
'hash': 'f3bcd41f95581cc20202793baa5b3d63ff269848465bb42213fb3d9c80f4cf94'
|
||
},
|
||
'sumPower' : {
|
||
'description': `### sumPower
|
||
|
||
Επιστρέφει the sum of the powers of all the numbers from \`start\` to \`end\` (both inclusive).
|
||
|
||
Χρησιμοποιείται \`Array.fill()\` to create an πίνακα of all the numbers in the target range, \`Array.map()\` and the exponent operator (\`**\`) to raise them to \`power\` and \`Array.reduce()\` to add them together.
|
||
Omit the second argument, \`power\`, to use a default power of \`2\`.
|
||
Omit the third argument, \`start\`, to use a default starting value of \`1\`.
|
||
|
||
`,
|
||
'comments': [`// 385`,`//3025`,`//2925`],
|
||
'hash': '8ea7437f0b31fb6be6445e80cc33d0362cb7b34a2cf3c4ef6fad57836e1164ee'
|
||
},
|
||
'symmetricDifference' : {
|
||
'description': `### symmetricDifference
|
||
|
||
Επιστρέφει the symmetric difference between two arrays.
|
||
|
||
Create a \`Set\` from each array, then use \`Array.filter()\` on each of them to only keep values not contained in the other.
|
||
|
||
`,
|
||
'comments': [`// [3,4]`],
|
||
'hash': 'fe09ab114e8ef0b7efcd9a00c911c66e1421b664a424fff51dd2bef6d1b967c5'
|
||
},
|
||
'symmetricDifferenceBy' : {
|
||
'description': `### symmetricDifferenceBy
|
||
|
||
Επιστρέφει the symmetric difference between two arrays, after applying the provided συνάρτηση to each πίνακα element of both.
|
||
|
||
Create a \`Set\` by applying \`fn\` to each array's elements, then use \`Array.filter()\` on each of them to only keep values not contained in the other.
|
||
|
||
`,
|
||
'comments': [`// [ 1.2, 3.4 ]`],
|
||
'hash': '1ab75f53cae9b9de08aaca4a9e0d2a2392ff67b1ac530277bb07c9824f452be4'
|
||
},
|
||
'symmetricDifferenceWith' : {
|
||
'description': `### symmetricDifferenceWith
|
||
|
||
Επιστρέφει the symmetric difference between two arrays, using a provided συνάρτηση as a comparator.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` and \`Array.findIndex()\` to find the appropriate values.
|
||
|
||
`,
|
||
'comments': [`// [1, 1.2, 3.9]`],
|
||
'hash': '2025e03028071fc9ef7d47e86b9f4621723e365c3691e3e8d1acc28edf68eec0'
|
||
},
|
||
'tail' : {
|
||
'description': `### tail
|
||
|
||
Επιστρέφει all elements in an πίνακα except for the first one.
|
||
|
||
Return \`Array.slice(1)\` if the array's \`length\` is more than \`1\`, otherwise, return the whole array.
|
||
|
||
`,
|
||
'comments': [`// [2,3]`,`// [1]`],
|
||
'hash': '91f77b9037f3a2dc716f9e97982fd5895d5484e7f83f39bb68b2ffca6294a5f5'
|
||
},
|
||
'take' : {
|
||
'description': `### take
|
||
|
||
Επιστρέφει an πίνακα with n elements removed from the beginning.
|
||
|
||
Χρησιμοποιείται \`Array.slice()\` to create a slice of the πίνακα with \`n\` elements taken from the beginning.
|
||
|
||
`,
|
||
'comments': [`// [1, 2, 3]`,`// []`],
|
||
'hash': 'fc2551cb197500c6e9cc6ed120b58994458a2c99b82cddc649ad70baf652a1af'
|
||
},
|
||
'takeRight' : {
|
||
'description': `### takeRight
|
||
|
||
Επιστρέφει an πίνακα with n elements removed from the end.
|
||
|
||
Χρησιμοποιείται \`Array.slice()\` to create a slice of the πίνακα with \`n\` elements taken from the end.
|
||
|
||
`,
|
||
'comments': [`// [ 2, 3 ]`,`// [3]`],
|
||
'hash': 'c9f51be7e5753798e299dd472c35cfe022a6e324519ed1aaac2222c810d47074'
|
||
},
|
||
'takeRightWhile' : {
|
||
'description': `### takeRightWhile
|
||
|
||
Removes elements from the end of an πίνακα until the passed συνάρτηση returns \`true\`. Επιστρέφει the removed elements.
|
||
|
||
Loop through the array, using a \`for...of\` loop over \`Array.keys()\` until the returned value from the συνάρτηση is \`true\`.
|
||
Return the removed elements, using \`Array.reverse()\` and \`Array.slice()\`.
|
||
|
||
`,
|
||
'comments': [`// [3, 4]`],
|
||
'hash': 'ff08e161774aa0ee0cc9e1792ba8d60c3268cdb7042df3cf815a2fbcb54a911a'
|
||
},
|
||
'takeWhile' : {
|
||
'description': `### takeWhile
|
||
|
||
Removes elements in an πίνακα until the passed συνάρτηση returns \`true\`. Επιστρέφει the removed elements.
|
||
|
||
Loop through the array, using a \`for...of\` loop over \`Array.keys()\` until the returned value from the συνάρτηση is \`true\`.
|
||
Return the removed elements, using \`Array.slice()\`.
|
||
|
||
`,
|
||
'comments': [`// [1, 2]`],
|
||
'hash': '06d1ac21a754e223cabe85a88b7c3dcc80848e6f06008728855ae62137bf556c'
|
||
},
|
||
'throttle' : {
|
||
'description': `### throttle
|
||
|
||
Δημιουργεί a throttled συνάρτηση that only invokes the provided συνάρτηση at most once per every \`wait\` milliseconds
|
||
|
||
Χρησιμοποιείται \`setTimeout()\` and \`clearTimeout()\` to throttle the given method, \`fn\`.
|
||
Χρησιμοποιείται \`Function.apply()\` to apply the \`this\` context to the συνάρτηση and provide the necessary \`arguments\`.
|
||
Χρησιμοποιείται \`Date.now()\` to keep track of the last time the throttled συνάρτηση was invoked.
|
||
Omit the second argument, \`wait\`, to set the timeout at a default of 0 ms.
|
||
|
||
`,
|
||
'comments': [`// Will log the window dimensions at most every 250ms`],
|
||
'hash': '7c436640f98253f3e8703882afff7c97414f3587dfe653003d41c68507b9ab5a'
|
||
},
|
||
'times' : {
|
||
'description': `### times
|
||
|
||
Iterates over a callback \`n\` times
|
||
|
||
Χρησιμοποιείται \`Function.call()\` to call \`fn\` \`n\` timesήuntil it returns \`false\`.
|
||
Omit the last argument, \`context\`, to use an \`undefined\` αντικείμενο (or the global αντικείμενο in non-strict mode).
|
||
|
||
`,
|
||
'comments': [`// 01234`],
|
||
'hash': '81177986848b8ea067f9019c43923709a9798d1e599fb9ddbb6005096600db37'
|
||
},
|
||
'timeTaken' : {
|
||
'description': `### timeTaken
|
||
|
||
Measures the time taken by a συνάρτηση to execute.
|
||
|
||
Χρησιμοποιείται \`console.time()\` and \`console.timeEnd()\` to measure the difference between the start and end times to determine how long the callback took to execute.
|
||
|
||
`,
|
||
'comments': [`// 1024, (logged): timeTaken: 0.02099609375ms`],
|
||
'hash': '5c109f0acaf569c0878370b18b7526a1f5f075c482b8d0eca6de2528e258bee5'
|
||
},
|
||
'toCamelCase' : {
|
||
'description': `### toCamelCase
|
||
|
||
Μετατρέπει a string to camelcase.
|
||
|
||
Break the string into words and combine them capitalizing the first letter of each word, using a regexp.
|
||
|
||
`,
|
||
'comments': [`// 'someDatabaseFieldName'`,`// 'someLabelThatNeedsToBeCamelized'`,`// 'someJavascriptProperty'`,`// 'someMixedStringWithSpacesUnderscoresAndHyphens'`],
|
||
'hash': '0fc71e3c8dc9306e00ec868a340283f9a90d14bfc620e9105fa34aff95849e05'
|
||
},
|
||
'toCurrency' : {
|
||
'description': `### toCurrency
|
||
|
||
Take a number and return specified currency formatting.
|
||
|
||
Χρησιμοποιείται \`Intl.NumberFormat\` to enable country / currency sensitive formatting.
|
||
|
||
`,
|
||
'comments': [`// €123,456.79 | currency: Euro | currencyLangFormat: Local`,`// $123,456.79 | currency: US Dollar | currencyLangFormat: English (United States)`,`// ۱۲۳٬۴۵۶٫۷۹ $ | currency: US Dollar | currencyLangFormat: Farsi`,`// ¥322,342,436,423 | currency: Japanese Yen | currencyLangFormat: Local`,`// 322 342 436 423 ¥ | currency: Japanese Yen | currencyLangFormat: Finnish`],
|
||
'hash': 'f00f4a2229ed6b9f98356e6b0ea9e245f1d53bdbd616eb4c2babb87d7cf350b9'
|
||
},
|
||
'toDecimalMark' : {
|
||
'description': `### toDecimalMark
|
||
|
||
Χρησιμοποιείται \`toLocaleString()\` to convert a float-point arithmetic to the [Decimal mark](https://en.wikipedia.org/wiki/Decimal_mark) form. It makes a comma separated string from a number.
|
||
|
||
`,
|
||
'comments': [`//en.wikipedia.org/wiki/Decimal_mark) form. It makes a comma separated string from a number.`,`// "12,305,030,388.909"`],
|
||
'hash': '60a6869c136463b7cd17169c91a3df8baba1c4d5482918b6f93b7d898f1ed725'
|
||
},
|
||
'toggleClass' : {
|
||
'description': `### toggleClass
|
||
|
||
Toggle a class for an element.
|
||
|
||
Χρησιμοποιείται \`element.classList.toggle()\` to toggle the specified class for the element.
|
||
|
||
`,
|
||
'comments': [`// The paragraph will not have the 'special' class anymore`],
|
||
'hash': '8e84c13bd40d483eea6a3d26518d118e2ba4eb1cf32381345521925b5ca2c481'
|
||
},
|
||
'toKebabCase' : {
|
||
'description': `### toKebabCase
|
||
|
||
Μετατρέπει a string to kebab case.
|
||
|
||
Break the string into words and combine them adding \`-\` as a separator, using a regexp.
|
||
|
||
`,
|
||
'comments': [`// 'camel-case'`,`// 'some-text'`,`// 'some-mixed-string-with-spaces-underscores-and-hyphens'`,`// "all-the-small-things"`,`// "i-am-listening-to-fm-while-loading-different-url-on-my-browser-and-also-editing-xml-and-html"`],
|
||
'hash': '661b36855eeb91fcb1bf514bcec9ac3474e30e9e54d111d29e4916528cab6640'
|
||
},
|
||
'tomorrow' : {
|
||
'description': `### tomorrow
|
||
|
||
Results in a string representation of tomorrow's date.
|
||
Χρησιμοποιείται \`new Date()\` to get today's date, adding one day using \`Date.getDate()\` and \`Date.setDate()\`, and converting the Date αντικείμενο to a string.
|
||
|
||
`,
|
||
'comments': [`// 2017-12-27 (if current date is 2017-12-26)`],
|
||
'hash': 'd6c258e73365607337f947d09aa229e45966e2a9585a7d39f81667ab88684f2d'
|
||
},
|
||
'toOrdinalSuffix' : {
|
||
'description': `### toOrdinalSuffix
|
||
|
||
Adds an ordinal suffix to a number.
|
||
|
||
Χρησιμοποιείται the modulo operator (\`%\`) to find values of single and tens digits.
|
||
Find which ordinal pattern digits match.
|
||
If digit is found in teens pattern, use teens ordinal.
|
||
|
||
`,
|
||
'comments': [`// "123rd"`],
|
||
'hash': '1325cac1de2f1437b19b9d23a72a4a88e7218ed20f7787ae15c7fc0953786c47'
|
||
},
|
||
'toSafeInteger' : {
|
||
'description': `### toSafeInteger
|
||
|
||
Μετατρέπει a value to a safe integer.
|
||
|
||
Χρησιμοποιείται \`Math.max()\` and \`Math.min()\` to find the closest safe value.
|
||
Χρησιμοποιείται \`Math.round()\` to convert to an integer.
|
||
|
||
`,
|
||
'comments': [`// 3`,`// 9007199254740991`],
|
||
'hash': '8416d92bd5d190468f9c9c73318228aa5898191983d1d941d6e43115d7ce63ba'
|
||
},
|
||
'toSnakeCase' : {
|
||
'description': `### toSnakeCase
|
||
|
||
Μετατρέπει a string to snake case.
|
||
|
||
Break the string into words and combine them adding \`_\` as a separator, using a regexp.
|
||
|
||
`,
|
||
'comments': [`// 'camel_case'`,`// 'some_text'`,`// 'some_mixed_string_with_spaces_underscores_and_hyphens'`,`// "all_the_smal_things"`,`// "i_am_listening_to_fm_while_loading_different_url_on_my_browser_and_also_editing_some_xml_and_html"`],
|
||
'hash': '6e6eab17f7ffa0d8330c38e6f250d07c149d1c382c7e30c983b20c100867a091'
|
||
},
|
||
'transform' : {
|
||
'description': `### transform
|
||
|
||
Applies a συνάρτηση against an accumulator and each key in the αντικείμενο (from left to right).
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` to iterate over each key in the object, \`Array.reduce()\` to call the apply the specified συνάρτηση against the given accumulator.
|
||
|
||
`,
|
||
'comments': [`// { '1': ['a', 'c'], '2': ['b'] }`],
|
||
'hash': '8edb3efaf27dc3bfdaceb112ffae32165eb9e9d3101fad1d77531538d3813273'
|
||
},
|
||
'truncateString' : {
|
||
'description': `### truncateString
|
||
|
||
Truncates a string up to a specified length.
|
||
|
||
Determine if the string's \`length\` is greater than \`num\`.
|
||
Return the string truncated to the desired length, with \`'...'\` appended to the endήthe original string.
|
||
|
||
`,
|
||
'comments': [`// 'boom...'`],
|
||
'hash': 'd108f89840fbd3b80322bb33fe5db0126cb27f87250b1ea5658311fead9abc99'
|
||
},
|
||
'truthCheckCollection' : {
|
||
'description': `### truthCheckCollection
|
||
|
||
Checks if the predicate (second argument) is truthy on all elements of a collection (first argument).
|
||
|
||
Χρησιμοποιείται \`Array.every()\` to check if each passed αντικείμενο has the specified property and if it returns a truthy value.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': 'ad9e91b1da020f616c65a49301df9fe45e1564515707741015f3e6f99829418e'
|
||
},
|
||
'unary' : {
|
||
'description': `### unary
|
||
|
||
Δημιουργεί a συνάρτηση that accepts up to one argument, ignoring any additional arguments.
|
||
|
||
Call the provided function, \`fn\`, with just the first argument given.
|
||
|
||
`,
|
||
'comments': [`// [6, 8, 10]`],
|
||
'hash': '80672a8ef916cbfd3c144c24d9a2ba8f61aae96d83fb6c65b788598f39b61086'
|
||
},
|
||
'unescapeHTML' : {
|
||
'description': `### unescapeHTML
|
||
|
||
Unescapes escaped HTML characters.
|
||
|
||
Χρησιμοποιείται \`String.replace()\` with a regex that matches the characters that need to be unescaped, using a callback συνάρτηση to replace each escaped character instance with its associated unescaped character using a dictionary (object).
|
||
|
||
`,
|
||
'comments': [`// '<a href="#">Me & you</a>'`],
|
||
'hash': '54547386a17cc030f6e53d3f9d7290b2ede349b7ebe223639e5fddb32c3ad941'
|
||
},
|
||
'unflattenObject' : {
|
||
'description': `### unflattenObject
|
||
|
||
Unlatten an αντικείμενο with the paths for keys.
|
||
|
||
Χρησιμοποιείται \`Object.keys(obj)\` combined with \`Array.reduce()\` to convert flattened path node to a leaf node.
|
||
If the value of a key contains a dot delimiter (\`.\`), use \`Array.split('.')\`, string transformations and \`JSON.parse()\` to create an object, then \`Object.assign()\` to create the leaf node.
|
||
Otherwise, add the appropriate key-value pair to the accumulator object.
|
||
|
||
`,
|
||
'comments': [`// { a: { b: { c: 1 } }, d: 1 }`],
|
||
'hash': '2b64c31a3c3a18db0b2e74699cd9a7f582a536143cdf8761a7d775c8baabc5f2'
|
||
},
|
||
'unfold' : {
|
||
'description': `### unfold
|
||
|
||
Builds an array, using an iterator συνάρτηση and an initial seed value.
|
||
|
||
Χρησιμοποιείται a \`while\` loop and \`Array.push()\` to call the συνάρτηση repeatedly until it returns \`false\`.
|
||
The iterator συνάρτηση accepts one argument (\`seed\`) and must always return an πίνακα with two elements ([\`value\`, \`nextSeed\`])ή\`false\` to terminate.
|
||
|
||
`,
|
||
'comments': [`// [-10, -20, -30, -40, -50]`],
|
||
'hash': '06e97ae5f0a22cf3c1400b8b9434078db0583e9507e74202eae98d9a59842f15'
|
||
},
|
||
'union' : {
|
||
'description': `### union
|
||
|
||
Επιστρέφει every element that exists in any of the two arrays once.
|
||
|
||
Create a \`Set\` with all values of \`a\` and \`b\` and convert to an array.
|
||
|
||
`,
|
||
'comments': [`// [1,2,3,4]`],
|
||
'hash': '279ee5619e2c8ab1ffd7723beb2d8925aab7d92198fbca786ba947fbaf00e497'
|
||
},
|
||
'unionBy' : {
|
||
'description': `### unionBy
|
||
|
||
Επιστρέφει every element that exists in any of the two arrays once, after applying the provided συνάρτηση to each πίνακα element of both.
|
||
|
||
Create a \`Set\` by applying all \`fn\` to all values of \`a\`.
|
||
Create a \`Set\` from \`a\` and all elements in \`b\` whose value, after applying \`fn\` does not match a value in the previously created set.
|
||
Return the last set converted to an array.
|
||
|
||
`,
|
||
'comments': [`// [2.1, 1.2]`],
|
||
'hash': 'a8f4f1c6141e9f86ff0cce30f10ab00266942965e63d1a93c1cd6626b7299c99'
|
||
},
|
||
'unionWith' : {
|
||
'description': `### unionWith
|
||
|
||
Επιστρέφει every element that exists in any of the two arrays once, using a provided comparator function.
|
||
|
||
Create a \`Set\` with all values of \`a\` and values in \`b\` for which the comparator finds no matches in \`a\`, using \`Array.findIndex()\`.
|
||
|
||
`,
|
||
'comments': [`// [1, 1.2, 1.5, 3, 0, 3.9]`],
|
||
'hash': '1b39e18064e94ecf8aac69882577c535783c923c0e1f1eeae01e22f2146db391'
|
||
},
|
||
'uniqueElements' : {
|
||
'description': `### uniqueElements
|
||
|
||
Επιστρέφει all unique values of an array.
|
||
|
||
Χρησιμοποιείται ES6 \`Set\` and the \`...rest\` operator to discard all duplicated values.
|
||
|
||
`,
|
||
'comments': [`// [1,2,3,4,5]`],
|
||
'hash': '068991a0bfab1548f9ce09ca137bab9276a4432b5ebcbf3f934d8064a0f69af1'
|
||
},
|
||
'untildify' : {
|
||
'description': `### untildify
|
||
|
||
Μετατρέπει a tilde path to an absolute path.
|
||
|
||
Χρησιμοποιείται \`String.replace()\` with a regular expression and \`OS.homedir()\` to replace the \`~\` in the start of the path with the home directory.
|
||
|
||
`,
|
||
'comments': [`// '/Χρησιμοποιείταιrs/aΧρησιμοποιείταιr/node'`],
|
||
'hash': '66d31ebcaf10ed92736e0246d4ad3222a200086e27982bdb8aad76390c171aa0'
|
||
},
|
||
'unzip' : {
|
||
'description': `### unzip
|
||
|
||
Δημιουργεί an πίνακα of arrays, ungrouping the elements in an πίνακα produced by [zip](#zip).
|
||
|
||
Χρησιμοποιείται \`Math.max.apply()\` to get the longest subarray in the array, \`Array.map()\` to make each element an array.
|
||
Χρησιμοποιείται \`Array.reduce()\` and \`Array.forEach()\` to map grouped values to individual arrays.
|
||
|
||
`,
|
||
'comments': [`//[['a', 'b'], [1, 2], [true, false]]`,`//[['a', 'b'], [1, 2], [true]]`],
|
||
'hash': 'e571a886a0e18d46d1db9016b72bc9467ccbb3b4765a0b0f6a9f766bfddd1548'
|
||
},
|
||
'unzipWith' : {
|
||
'description': `### unzipWith
|
||
|
||
Δημιουργεί an πίνακα of elements, ungrouping the elements in an πίνακα produced by [zip](#zip) and applying the provided function.
|
||
|
||
Χρησιμοποιείται \`Math.max.apply()\` to get the longest subarray in the array, \`Array.map()\` to make each element an array.
|
||
Χρησιμοποιείται \`Array.reduce()\` and \`Array.forEach()\` to map grouped values to individual arrays.
|
||
Χρησιμοποιείται \`Array.map()\` and the spread operator (\`...\`) to apply \`fn\` to each individual group of elements.
|
||
|
||
`,
|
||
'comments': [`// [3, 30, 300]`],
|
||
'hash': '846fa42e4c45d1fa850c7bb5b1dcbb56ea9ccffd80b2c4ca0220261834a3dfdf'
|
||
},
|
||
'URLJoin' : {
|
||
'description': `### URLJoin
|
||
|
||
Joins all given URL segments together, then normalizes the resulting URL.
|
||
|
||
Χρησιμοποιείται \`String.join('/')\` to combine URL segments, then a series of \`String.replace()\` calls with various regexps to normalize the resulting URL (remove double slashes, add proper slashes for protocol, remove slashes before parameters, combine parameters with \`'&'\` and normalize first parameter delimiter).
|
||
|
||
`,
|
||
'comments': [`//, '$1://')`,`//www.google.com', 'a', '/b/cd', '?foo=123', '?bar=foo'); // 'http://www.google.com/a/b/cd?foo=123&bar=foo'`],
|
||
'hash': 'eae3f3e8b8b4693c85b4fd87719643257b6423de0a696f0890d2192dd004da9f'
|
||
},
|
||
'UUIDGeneratorBrowser' : {
|
||
'description': `### UUIDGeneratorBrowser
|
||
|
||
Generates a UUID in a browser.
|
||
|
||
Χρησιμοποιείται \`crypto\` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
|
||
|
||
`,
|
||
'comments': [`//www.ietf.org/rfc/rfc4122.txt) version 4.`,`// '7982fcfe-5721-4632-bede-6000885be57d'`],
|
||
'hash': '21ad9afc423210d3e5cda9488c9eb9451c688ddfcc2c1d13cb8e1d545847a3fa'
|
||
},
|
||
'UUIDGeneratorNode' : {
|
||
'description': `### UUIDGeneratorNode
|
||
|
||
Generates a UUID in Node.JS.
|
||
|
||
Χρησιμοποιείται \`crypto\` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
|
||
|
||
`,
|
||
'comments': [`//www.ietf.org/rfc/rfc4122.txt) version 4.`,`// '79c7c136-60ee-40a2-beb2-856f1feabefc'`],
|
||
'hash': '182beef816a0e70b7a4871450fb7e769b4fb1cc74ba15fd3e2374cb9f72bd040'
|
||
},
|
||
'validateNumber' : {
|
||
'description': `### validateNumber
|
||
|
||
Επιστρέφει \`true\` if the given value is a number, \`false\` otherwise.
|
||
|
||
Χρησιμοποιείται \`!isNaN()\` in combination with \`parseFloat()\` to check if the argument is a number.
|
||
Χρησιμοποιείται \`isFinite()\` to check if the number is finite.
|
||
Χρησιμοποιείται \`Number()\` to check if the coercion holds.
|
||
|
||
`,
|
||
'comments': [`// true`],
|
||
'hash': 'ff17bb0d585271e5d73f9a2b87898dc032235bc42a7df2cf1a9ace87a2f9b019'
|
||
},
|
||
'without' : {
|
||
'description': `### without
|
||
|
||
Filters out the elements of an array, that have one of the specified values.
|
||
|
||
Χρησιμοποιείται \`Array.filter()\` to create an πίνακα excluding(using \`!Array.includes()\`) all given values.
|
||
|
||
_(For a snippet that mutates the original πίνακα see [\`pull\`](#pull))_
|
||
|
||
`,
|
||
'comments': [`// [3]`],
|
||
'hash': 'b972b3fd605305d820649c6b92aa1670ac07b363a1940b1635a4f070c9ab29c7'
|
||
},
|
||
'words' : {
|
||
'description': `### words
|
||
|
||
Μετατρέπει a given string into an πίνακα of words.
|
||
|
||
Χρησιμοποιείται \`String.split()\` with a supplied pattern (defaults to non-alpha as a regexp) to convert to an πίνακα of strings. Χρησιμοποιείται \`Array.filter()\` to remove any empty strings.
|
||
Omit the second argument to use the default regexp.
|
||
|
||
`,
|
||
'comments': [`// ["I", "love", "javaScript"]`,`// ["python", "javaScript", "coffee"]`],
|
||
'hash': '58d0cb51b8f6ca17a7eecf2baf2afb3f1d0e4e2677e986415bfb88eac9f138b0'
|
||
},
|
||
'xProd' : {
|
||
'description': `### xProd
|
||
|
||
Δημιουργεί a new πίνακα out of the two supplied by creating each possible pair from the arrays.
|
||
|
||
Χρησιμοποιείται \`Array.reduce()\`, \`Array.map()\` and \`Array.concat()\` to produce every possible pair from the elements of the two arrays and save them in an array.
|
||
|
||
`,
|
||
'comments': [`// [[1, 'a'], [1, 'b'], [2, 'a'], [2, 'b']]`],
|
||
'hash': 'c62384cd9e707f9e26f711b02c53ce0805e675b8e521602fc8335e02c0cafba9'
|
||
},
|
||
'yesNo' : {
|
||
'description': `### yesNo
|
||
|
||
Επιστρέφει \`true\` if the string is \`y\`/\`yes\`ή\`false\` if the string is \`n\`/\`no\`.
|
||
|
||
Χρησιμοποιείται \`RegExp.test()\` to check if the string evaluates to \`y/yes\`ή\`n/no\`.
|
||
Omit the second argument, \`def\` to set the default answer as \`no\`.
|
||
|
||
`,
|
||
'comments': [`// true`,`// true`,`// false`,`// true`],
|
||
'hash': '60e89489f96442e8b9094b70188f4cfbd37564efcee09ef9a82ecceacd2af815'
|
||
},
|
||
'zip' : {
|
||
'description': `### zip
|
||
|
||
Δημιουργεί an πίνακα of elements, grouped based on the position in the original arrays.
|
||
|
||
Χρησιμοποιείται \`Math.max.apply()\` to get the longest πίνακα in the arguments.
|
||
Δημιουργεί an πίνακα with that length as return value and use \`Array.from()\` with a map-function to create an πίνακα of grouped elements.
|
||
If lengths of the argument-arrays vary, \`undefined\` is used where no value could be found.
|
||
|
||
`,
|
||
'comments': [`// [['a', 1, true], ['b', 2, false]]`,`// [['a', 1, true], [undefined, 2, false]]`],
|
||
'hash': '97b639771737fb6d96e78b58cd4a63e3aa1379c83c1047e2d31389761b0178ef'
|
||
},
|
||
'zipObject' : {
|
||
'description': `### zipObject
|
||
|
||
Given an πίνακα of valid property identifiers and an πίνακα of values, return an αντικείμενο associating the properties to the values.
|
||
|
||
Since an αντικείμενο can have undefined values but not undefined property pointers, the πίνακα of properties is used to decide the structure of the resulting αντικείμενο using \`Array.reduce()\`.
|
||
|
||
`,
|
||
'comments': [`// {a: 1, b: 2, c: undefined}`,`// {a: 1, b: 2}`],
|
||
'hash': '8bfb1ef93a51890298e9a688b2bebbb516707495be72929a2cbafc6c4dc1aa90'
|
||
},
|
||
'zipWith' : {
|
||
'description': `### zipWith
|
||
|
||
Δημιουργεί an πίνακα of elements, grouped based on the position in the original arrays and using συνάρτηση as the last value to specify how grouped values should be combined.
|
||
|
||
Check if the last argument provided in a function.
|
||
Χρησιμοποιείται \`Math.max()\` to get the longest πίνακα in the arguments.
|
||
Δημιουργεί an πίνακα with that length as return value and use \`Array.from()\` with a map-function to create an πίνακα of grouped elements.
|
||
If lengths of the argument-arrays vary, \`undefined\` is used where no value could be found.
|
||
The συνάρτηση is invoked with the elements of each group \`(...group)\`.
|
||
|
||
`,
|
||
'comments': [`// [111,222]`,`// [111, 222, '3bc']`],
|
||
'hash': '01892b8ea8d06d71e76f01679030ec1270ddc5a28fd4d872e1dcf0e356348a47'
|
||
},
|
||
'onUserInputChange' : {
|
||
'description': `### onUserInputChange
|
||
|
||
Run the callback whenever the user input type changes (\`mouse\` or \`touch\`). Useful for enabling/disabling code depending on the input device. This process is dynamic and works with hybrid devices (e.g. touchscreen laptops).
|
||
|
||
Use two event listeners. Assume \`mouse\` input initially and bind a \`touchstart\` event listener to the document.
|
||
On \`touchstart\`, add a \`mousemove\` event listener to listen for two consecutive \`mousemove\` events firing within 20ms, using \`performance.now()\`.
|
||
Run the callback with the input type as an argument in either of these situations.
|
||
|
||
`,
|
||
'comments': [],
|
||
'hash': '8b40bbf8048d58d7b1f709af838ac2d50b7f345a6c799ad95861963e05481dff'
|
||
}};
|