andre/30-seconds-of-code
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Travis build: 1511

Browse Source
This commit is contained in:
30secondsofcode
2019-10-16 06:39:13 +00:00
parent 4b6bce7ac8
commit ca2c1a51c0
14 changed files with 207 additions and 117 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
README.md
View File

@ -494,6 +494,7 @@ _30s.average(1, 2, 3);
* [`isBrowser`](#isbrowser) * [`isBrowser`](#isbrowser)
* [`mostPerformant`](#mostperformant) * [`mostPerformant`](#mostperformant)
* [`nthArg`](#ntharg) * [`nthArg`](#ntharg)
* [`objectToQueryString`](#objecttoquerystring)
* [`parseCookie`](#parsecookie) * [`parseCookie`](#parsecookie)
* [`prettyBytes`](#prettybytes-) * [`prettyBytes`](#prettybytes-)
* [`randomHexColorCode`](#randomhexcolorcode) * [`randomHexColorCode`](#randomhexcolorcode)
@ -1724,8 +1725,8 @@ const join = (arr, separator = ',', end = separator) =>
i === arr.length - 2 i === arr.length - 2
? acc + val + end ? acc + val + end
: i === arr.length - 1 : i === arr.length - 1
? acc + val ? acc + val
: acc + val + separator, : acc + val + separator,
'' ''
); );
``` ```
@ -4273,10 +4274,10 @@ const getMeridiemSuffixOfInteger = num =>
num === 0 || num === 24 num === 0 || num === 24
? 12 + 'am' ? 12 + 'am'
: num === 12 : num === 12
? 12 + 'pm' ? 12 + 'pm'
: num < 12 : num < 12
? (num % 12) + 'am' ? (num % 12) + 'am'
: (num % 12) + 'pm'; : (num % 12) + 'pm';
``` ```
<details> <details>
@ -5488,11 +5489,11 @@ Throws an exception if `n` is a negative number.
const factorial = n => const factorial = n =>
n < 0 n < 0
? (() => { ? (() => {
throw new TypeError('Negative numbers are not allowed!'); throw new TypeError('Negative numbers are not allowed!');
})() })()
: n <= 1 : n <= 1
? 1 ? 1
: n * factorial(n - 1); : n * factorial(n - 1);
``` ```
<details> <details>
@ -6703,8 +6704,8 @@ const deepClone = obj => {
return Array.isArray(obj) && obj.length return Array.isArray(obj) && obj.length
? (clone.length = obj.length) && Array.from(clone) ? (clone.length = obj.length) && Array.from(clone)
: Array.isArray(obj) : Array.isArray(obj)
? Array.from(obj) ? Array.from(obj)
: clone; : clone;
}; };
``` ```
@ -6792,13 +6793,13 @@ const deepMapKeys = (obj, f) =>
Array.isArray(obj) Array.isArray(obj)
? obj.map(val => deepMapKeys(val, f)) ? obj.map(val => deepMapKeys(val, f))
: typeof obj === 'object' : typeof obj === 'object'
? Object.keys(obj).reduce((acc, current) => { ? Object.keys(obj).reduce((acc, current) => {
const val = obj[current]; const val = obj[current];
acc[f(current)] = acc[f(current)] =
val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val); val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
return acc; return acc;
}, {}) }, {})
: obj; : obj;
``` ```
<details> <details>
@ -6869,9 +6870,9 @@ const dig = (obj, target) =>
target in obj target in obj
? obj[target] ? obj[target]
: Object.values(obj).reduce((acc, val) => { : Object.values(obj).reduce((acc, val) => {
if (acc !== undefined) return acc; if (acc !== undefined) return acc;
if (typeof val === 'object') return dig(val, target); if (typeof val === 'object') return dig(val, target);
}, undefined); }, undefined);
``` ```
<details> <details>
@ -7127,8 +7128,7 @@ Otherwise, use `Object.keys(obj)` in combination with `Array.prototype.includes(
const hasKey = (obj, key) => { const hasKey = (obj, key) => {
if (key.includes('.')) { if (key.includes('.')) {
let _key = key.split('.')[0]; let _key = key.split('.')[0];
if (typeof obj[_key] === 'object') if (typeof obj[_key] === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));
return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));
} }
return Object.keys(obj).includes(key); return Object.keys(obj).includes(key);
}; };
@ -7139,7 +7139,9 @@ const hasKey = (obj, key) => {
```js ```js
let obj = { let obj = {
a: 1, b: { c: 4 }, 'd.e': 5 a: 1,
b: { c: 4 },
'd.e': 5
}; };
hasKey(obj, 'a'); // true hasKey(obj, 'a'); // true
hasKey(obj, 'b'); // true hasKey(obj, 'b'); // true
@ -9366,6 +9368,36 @@ last(1, 2, 3, 4, 5); // 5
<br>[⬆ Back to top](#contents) <br>[⬆ Back to top](#contents)
### objectToQueryString
Returns a query string generated from the key-value pairs of the given object.
Use `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.
Determine the `symbol` to be either `?` or `&` based on the `index` and concatenate `val` to `queryString` only if it's a string.
Return the `queryString` or an empty string when the `queryParameters` are falsy.
```js
const objectToQueryString = queryParameters => {
return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {
const symbol = index === 0 ? '?' : '&';
queryString += (typeof val === 'string') ? `${symbol}${key}=${val}` : '';
return queryString;
}, '')
: '';
};
```
<details>
<summary>Examples</summary>
```js
objectToQueryString({page: '1', size: '2kg', key: undefined}); // '?page=1&size=2kg'
```
</details>
<br>[⬆ Back to top](#contents)
### parseCookie ### parseCookie
Parse an HTTP Cookie header string and return an object of all cookie name-value pairs. Parse an HTTP Cookie header string and return an object of all cookie name-value pairs.

33
snippet_data/snippetList.json
View File

@ -412,7 +412,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "286cf039584d2a4ea54df6456bacb75e28f4fdc0891b61ee94f8ba8266918494" "hash": "34fedcb1752dc3907869f323b7fc519add6925d0868c0495ffc112b0d5706267"
} }
}, },
{ {
@ -835,7 +835,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5ab25ab96afd4f1f481fc318b5b290ba8c57a468ef6bca0ca200cfb7fcf3ba9f" "hash": "0a4684d6fc79bdbbac31df3af6c493ba7c881936ada5bc52824b4f26ca177459"
} }
}, },
{ {
@ -898,7 +898,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "7a228b650ff668f697e524e0d27ebeff1bfa35e04333b6cd5e742ff63bfea25d" "hash": "a4e1e33c0688dbf1ca231d9d8ea315ffed93b7f83f5d8cbf0714f10fdfeda8cf"
} }
}, },
{ {
@ -1037,7 +1037,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5f38360819f9225b887a94221bfee1a80f1bcc224a364440b3388f60491b03ba" "hash": "484bd222e636e8a8409c30ddb1fe6e3fe72ab7a43f2edf089b2758d5e9bee528"
} }
}, },
{ {
@ -1273,7 +1273,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "55b1ce0a892110d792a9487e40331774015525479faa2b8961f6c2ea6291c27b" "hash": "0eac852db7a7add352b0d36677b22718b342ed9dc12f11780cac87e3b8260a05"
} }
}, },
{ {
@ -1678,7 +1678,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "16c3b724b653dcb31f3e59f1664a59951abb15a93eb3697cade4d3ae0e63c532" "hash": "9e39c6a3a8ec5b51c5e16f69107fc9e90b2697b2cf2689850872071bb968723e"
} }
}, },
{ {
@ -1855,7 +1855,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "2d4e7ba65fd20501367a46132962fe282099ca6732fdd206204a540f643ce34f" "hash": "a34ac55719f935ad7a3a9a48291bb54cba6ee2c62713137b94f25ac065a78dbc"
} }
}, },
{ {
@ -2836,7 +2836,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "362fddaa6244404741e84bca6fc442a101fdb642af53b299e8b9994d0d7162d8" "hash": "3db3faac666ee61ab86c70766d2ab5d1293ffd818da87edb971bfff7a366364a"
} }
}, },
{ {
@ -3383,6 +3383,23 @@
"hash": "ed97cd30b8004ca41939fabebf535f9017868b261ded4c2081c3367fa0ab1847" "hash": "ed97cd30b8004ca41939fabebf535f9017868b261ded4c2081c3367fa0ab1847"
} }
}, },
{
"id": "objectToQueryString",
"type": "snippetListing",
"title": "objectToQueryString",
"attributes": {
"text": "Returns a query string generated from the key-value pairs of the given object.\n\nUse `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.\nDetermine the `symbol` to be either `?` or `&` based on the `index` and concatenate `val` to `queryString` only if it's a string.\nReturn the `queryString` or an empty string when the `queryParameters` are falsy.\n\n",
"tags": [
"utility",
"object",
"function",
"intermediate"
]
},
"meta": {
"hash": "e87fc52b6d22804ebb9f4adb2acade44183b8db53d101839c6d5cb02aa32419b"
}
},
{ {
"id": "observeMutations", "id": "observeMutations",
"type": "snippetListing", "type": "snippetListing",

55
snippet_data/snippets.json
View File

@ -568,7 +568,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "286cf039584d2a4ea54df6456bacb75e28f4fdc0891b61ee94f8ba8266918494" "hash": "34fedcb1752dc3907869f323b7fc519add6925d0868c0495ffc112b0d5706267"
} }
}, },
{ {
@ -1142,7 +1142,7 @@
"fileName": "deepClone.md", "fileName": "deepClone.md",
"text": "Creates a deep clone of an object.\n\nUse recursion.\nCheck if the passed object is `null` and, if so, return `null`.\nUse `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.\nUse `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.\n\n", "text": "Creates a deep clone of an object.\n\nUse recursion.\nCheck if the passed object is `null` and, if so, return `null`.\nUse `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.\nUse `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const deepClone = obj => {\n if (obj === null) return null;\n let clone = Object.assign({}, obj);\n Object.keys(clone).forEach(\n key => (clone[key] = typeof obj[key] === 'object' ? deepClone(obj[key]) : obj[key])\n );\n return Array.isArray(obj) && obj.length\n ? (clone.length = obj.length) && Array.from(clone)\n : Array.isArray(obj)\n ? Array.from(obj)\n : clone;\n};", "es6": "const deepClone = obj => {\n if (obj === null) return null;\n let clone = Object.assign({}, obj);\n Object.keys(clone).forEach(\n key => (clone[key] = typeof obj[key] === 'object' ? deepClone(obj[key]) : obj[key])\n );\n return Array.isArray(obj) && obj.length\n ? (clone.length = obj.length) && Array.from(clone)\n : Array.isArray(obj)\n ? Array.from(obj)\n : clone;\n};",
"es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar deepClone = function deepClone(obj) {\n if (obj === null) return null;\n var clone = Object.assign({}, obj);\n Object.keys(clone).forEach(function (key) {\n return clone[key] = _typeof(obj[key]) === 'object' ? deepClone(obj[key]) : obj[key];\n });\n return Array.isArray(obj) && obj.length ? (clone.length = obj.length) && Array.from(clone) : Array.isArray(obj) ? Array.from(obj) : clone;\n};", "es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar deepClone = function deepClone(obj) {\n if (obj === null) return null;\n var clone = Object.assign({}, obj);\n Object.keys(clone).forEach(function (key) {\n return clone[key] = _typeof(obj[key]) === 'object' ? deepClone(obj[key]) : obj[key];\n });\n return Array.isArray(obj) && obj.length ? (clone.length = obj.length) && Array.from(clone) : Array.isArray(obj) ? Array.from(obj) : clone;\n};",
"example": "const a = { foo: 'bar', obj: { a: 1, b: 2 } };\nconst b = deepClone(a); // a !== b, a.obj !== b.obj" "example": "const a = { foo: 'bar', obj: { a: 1, b: 2 } };\nconst b = deepClone(a); // a !== b, a.obj !== b.obj"
}, },
@ -1153,7 +1153,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5ab25ab96afd4f1f481fc318b5b290ba8c57a468ef6bca0ca200cfb7fcf3ba9f" "hash": "0a4684d6fc79bdbbac31df3af6c493ba7c881936ada5bc52824b4f26ca177459"
} }
}, },
{ {
@ -1229,7 +1229,7 @@
"fileName": "deepMapKeys.md", "fileName": "deepMapKeys.md",
"text": "Deep maps an object's keys.\n\nCreates an object with the same values as the provided object and keys generated by running the provided function for each key.\nUse `Object.keys(obj)` to iterate over the object's keys. \nUse `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.\n\n", "text": "Deep maps an object's keys.\n\nCreates an object with the same values as the provided object and keys generated by running the provided function for each key.\nUse `Object.keys(obj)` to iterate over the object's keys. \nUse `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const deepMapKeys = (obj, f) =>\n Array.isArray(obj)\n ? obj.map(val => deepMapKeys(val, f))\n : typeof obj === 'object'\n ? Object.keys(obj).reduce((acc, current) => {\n const val = obj[current];\n acc[f(current)] =\n val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);\n return acc;\n }, {})\n : obj;", "es6": "const deepMapKeys = (obj, f) =>\n Array.isArray(obj)\n ? obj.map(val => deepMapKeys(val, f))\n : typeof obj === 'object'\n ? Object.keys(obj).reduce((acc, current) => {\n const val = obj[current];\n acc[f(current)] =\n val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);\n return acc;\n }, {})\n : obj;",
"es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar deepMapKeys = function deepMapKeys(obj, f) {\n return Array.isArray(obj) ? obj.map(function (val) {\n return deepMapKeys(val, f);\n }) : _typeof(obj) === 'object' ? Object.keys(obj).reduce(function (acc, current) {\n var val = obj[current];\n acc[f(current)] = val !== null && _typeof(val) === 'object' ? deepMapKeys(val, f) : acc[f(current)] = val;\n return acc;\n }, {}) : obj;\n};", "es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar deepMapKeys = function deepMapKeys(obj, f) {\n return Array.isArray(obj) ? obj.map(function (val) {\n return deepMapKeys(val, f);\n }) : _typeof(obj) === 'object' ? Object.keys(obj).reduce(function (acc, current) {\n var val = obj[current];\n acc[f(current)] = val !== null && _typeof(val) === 'object' ? deepMapKeys(val, f) : acc[f(current)] = val;\n return acc;\n }, {}) : obj;\n};",
"example": "const obj = {\n foo: '1',\n nested: {\n child: {\n withArray: [\n {\n grandChild: ['hello']\n }\n ]\n }\n }\n};\nconst upperKeysObj = deepMapKeys(obj, key => key.toUpperCase());\n/*\n{\n \"FOO\":\"1\",\n \"NESTED\":{\n \"CHILD\":{\n \"WITHARRAY\":[\n {\n \"GRANDCHILD\":[ 'hello' ]\n }\n ]\n }\n }\n}\n*/" "example": "const obj = {\n foo: '1',\n nested: {\n child: {\n withArray: [\n {\n grandChild: ['hello']\n }\n ]\n }\n }\n};\nconst upperKeysObj = deepMapKeys(obj, key => key.toUpperCase());\n/*\n{\n \"FOO\":\"1\",\n \"NESTED\":{\n \"CHILD\":{\n \"WITHARRAY\":[\n {\n \"GRANDCHILD\":[ 'hello' ]\n }\n ]\n }\n }\n}\n*/"
}, },
@ -1240,7 +1240,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "7a228b650ff668f697e524e0d27ebeff1bfa35e04333b6cd5e742ff63bfea25d" "hash": "a4e1e33c0688dbf1ca231d9d8ea315ffed93b7f83f5d8cbf0714f10fdfeda8cf"
} }
}, },
{ {
@ -1422,7 +1422,7 @@
"fileName": "dig.md", "fileName": "dig.md",
"text": "Returns the target value in a nested JSON object, based on the given key.\n\nUse the `in` operator to check if `target` exists in `obj`.\nIf found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.\n\n", "text": "Returns the target value in a nested JSON object, based on the given key.\n\nUse the `in` operator to check if `target` exists in `obj`.\nIf found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const dig = (obj, target) =>\n target in obj\n ? obj[target]\n : Object.values(obj).reduce((acc, val) => {\n if (acc !== undefined) return acc;\n if (typeof val === 'object') return dig(val, target);\n }, undefined);", "es6": "const dig = (obj, target) =>\n target in obj\n ? obj[target]\n : Object.values(obj).reduce((acc, val) => {\n if (acc !== undefined) return acc;\n if (typeof val === 'object') return dig(val, target);\n }, undefined);",
"es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar dig = function dig(obj, target) {\n return target in obj ? obj[target] : Object.values(obj).reduce(function (acc, val) {\n if (acc !== undefined) return acc;\n if (_typeof(val) === 'object') return dig(val, target);\n }, undefined);\n};", "es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar dig = function dig(obj, target) {\n return target in obj ? obj[target] : Object.values(obj).reduce(function (acc, val) {\n if (acc !== undefined) return acc;\n if (_typeof(val) === 'object') return dig(val, target);\n }, undefined);\n};",
"example": "const data = {\n level1: {\n level2: {\n level3: 'some data'\n }\n }\n};\ndig(data, 'level3'); // 'some data'\ndig(data, 'level4'); // undefined" "example": "const data = {\n level1: {\n level2: {\n level3: 'some data'\n }\n }\n};\ndig(data, 'level3'); // 'some data'\ndig(data, 'level4'); // undefined"
}, },
@ -1433,7 +1433,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5f38360819f9225b887a94221bfee1a80f1bcc224a364440b3388f60491b03ba" "hash": "484bd222e636e8a8409c30ddb1fe6e3fe72ab7a43f2edf089b2758d5e9bee528"
} }
}, },
{ {
@ -1748,7 +1748,7 @@
"fileName": "factorial.md", "fileName": "factorial.md",
"text": "Calculates the factorial of a number.\n\nUse recursion.\nIf `n` is less than or equal to `1`, return `1`.\nOtherwise, return the product of `n` and the factorial of `n - 1`.\nThrows an exception if `n` is a negative number.\n\n", "text": "Calculates the factorial of a number.\n\nUse recursion.\nIf `n` is less than or equal to `1`, return `1`.\nOtherwise, return the product of `n` and the factorial of `n - 1`.\nThrows an exception if `n` is a negative number.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const factorial = n =>\n n < 0\n ? (() => {\n throw new TypeError('Negative numbers are not allowed!');\n })()\n : n <= 1\n ? 1\n : n * factorial(n - 1);", "es6": "const factorial = n =>\n n < 0\n ? (() => {\n throw new TypeError('Negative numbers are not allowed!');\n })()\n : n <= 1\n ? 1\n : n * factorial(n - 1);",
"es5": "var factorial = function factorial(n) {\n return n < 0 ? function () {\n throw new TypeError('Negative numbers are not allowed!');\n }() : n <= 1 ? 1 : n * factorial(n - 1);\n};", "es5": "var factorial = function factorial(n) {\n return n < 0 ? function () {\n throw new TypeError('Negative numbers are not allowed!');\n }() : n <= 1 ? 1 : n * factorial(n - 1);\n};",
"example": "factorial(6); // 720" "example": "factorial(6); // 720"
}, },
@ -1759,7 +1759,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "55b1ce0a892110d792a9487e40331774015525479faa2b8961f6c2ea6291c27b" "hash": "0eac852db7a7add352b0d36677b22718b342ed9dc12f11780cac87e3b8260a05"
} }
}, },
{ {
@ -2310,7 +2310,7 @@
"fileName": "getMeridiemSuffixOfInteger.md", "fileName": "getMeridiemSuffixOfInteger.md",
"text": "Converts an integer to a suffixed string, adding `am` or `pm` based on its value.\n\nUse the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.\n\n", "text": "Converts an integer to a suffixed string, adding `am` or `pm` based on its value.\n\nUse the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const getMeridiemSuffixOfInteger = num =>\n num === 0 || num === 24\n ? 12 + 'am'\n : num === 12\n ? 12 + 'pm'\n : num < 12\n ? (num % 12) + 'am'\n : (num % 12) + 'pm';", "es6": "const getMeridiemSuffixOfInteger = num =>\n num === 0 || num === 24\n ? 12 + 'am'\n : num === 12\n ? 12 + 'pm'\n : num < 12\n ? (num % 12) + 'am'\n : (num % 12) + 'pm';",
"es5": "var getMeridiemSuffixOfInteger = function getMeridiemSuffixOfInteger(num) {\n return num === 0 || num === 24 ? 12 + 'am' : num === 12 ? 12 + 'pm' : num < 12 ? num % 12 + 'am' : num % 12 + 'pm';\n};", "es5": "var getMeridiemSuffixOfInteger = function getMeridiemSuffixOfInteger(num) {\n return num === 0 || num === 24 ? 12 + 'am' : num === 12 ? 12 + 'pm' : num < 12 ? num % 12 + 'am' : num % 12 + 'pm';\n};",
"example": "getMeridiemSuffixOfInteger(0); // \"12am\"\ngetMeridiemSuffixOfInteger(11); // \"11am\"\ngetMeridiemSuffixOfInteger(13); // \"1pm\"\ngetMeridiemSuffixOfInteger(25); // \"1pm\"" "example": "getMeridiemSuffixOfInteger(0); // \"12am\"\ngetMeridiemSuffixOfInteger(11); // \"11am\"\ngetMeridiemSuffixOfInteger(13); // \"1pm\"\ngetMeridiemSuffixOfInteger(25); // \"1pm\""
}, },
@ -2320,7 +2320,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "16c3b724b653dcb31f3e59f1664a59951abb15a93eb3697cade4d3ae0e63c532" "hash": "9e39c6a3a8ec5b51c5e16f69107fc9e90b2697b2cf2689850872071bb968723e"
} }
}, },
{ {
@ -2552,9 +2552,9 @@
"fileName": "hasKey.md", "fileName": "hasKey.md",
"text": "Returns `true` if the target value exists in a JSON object, `false` otherwise.\n\nCheck if the key contains `.`, use `String.prototype.split('.')[0]` to get the first part and store as `_key`.\nUse `typeof` to check if the contents of `obj[key]` are an `object` and, if so, call `hasKey` with that object and the remainder of the `key`.\nOtherwise, use `Object.keys(obj)` in combination with `Array.prototype.includes()` to check if the given `key` exists.\n\n", "text": "Returns `true` if the target value exists in a JSON object, `false` otherwise.\n\nCheck if the key contains `.`, use `String.prototype.split('.')[0]` to get the first part and store as `_key`.\nUse `typeof` to check if the contents of `obj[key]` are an `object` and, if so, call `hasKey` with that object and the remainder of the `key`.\nOtherwise, use `Object.keys(obj)` in combination with `Array.prototype.includes()` to check if the given `key` exists.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const hasKey = (obj, key) => {\n if (key.includes('.')) {\n let _key = key.split('.')[0];\n if (typeof obj[_key] === 'object')\n return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n return Object.keys(obj).includes(key);\n};", "es6": "const hasKey = (obj, key) => {\n if (key.includes('.')) {\n let _key = key.split('.')[0];\n if (typeof obj[_key] === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n return Object.keys(obj).includes(key);\n};",
"es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar hasKey = function hasKey(obj, key) {\n if (key.includes('.')) {\n var _key = key.split('.')[0];\n if (_typeof(obj[_key]) === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n\n return Object.keys(obj).includes(key);\n};", "es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar hasKey = function hasKey(obj, key) {\n if (key.includes('.')) {\n var _key = key.split('.')[0];\n if (_typeof(obj[_key]) === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n\n return Object.keys(obj).includes(key);\n};",
"example": "let obj = {\n a: 1, b: { c: 4 }, 'd.e': 5\n};\nhasKey(obj, 'a'); // true\nhasKey(obj, 'b'); // true\nhasKey(obj, 'b.c'); // true\nhasKey(obj, 'd.e'); // true\nhasKey(obj, 'd'); // false\nhasKey(obj, 'f'); // false" "example": "let obj = {\n a: 1,\n b: { c: 4 },\n 'd.e': 5\n};\nhasKey(obj, 'a'); // true\nhasKey(obj, 'b'); // true\nhasKey(obj, 'b.c'); // true\nhasKey(obj, 'd.e'); // true\nhasKey(obj, 'd'); // false\nhasKey(obj, 'f'); // false"
}, },
"tags": [ "tags": [
"object", "object",
@ -2563,7 +2563,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "2d4e7ba65fd20501367a46132962fe282099ca6732fdd206204a540f643ce34f" "hash": "a34ac55719f935ad7a3a9a48291bb54cba6ee2c62713137b94f25ac065a78dbc"
} }
}, },
{ {
@ -3906,7 +3906,7 @@
"fileName": "join.md", "fileName": "join.md",
"text": "Joins all elements of an array into a string and returns this string.\nUses a separator and an end separator.\n\nUse `Array.prototype.reduce()` to combine elements into a string.\nOmit the second argument, `separator`, to use a default separator of `','`.\nOmit the third argument, `end`, to use the same value as `separator` by default.\n\n", "text": "Joins all elements of an array into a string and returns this string.\nUses a separator and an end separator.\n\nUse `Array.prototype.reduce()` to combine elements into a string.\nOmit the second argument, `separator`, to use a default separator of `','`.\nOmit the third argument, `end`, to use the same value as `separator` by default.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const join = (arr, separator = ',', end = separator) =>\n arr.reduce(\n (acc, val, i) =>\n i === arr.length - 2\n ? acc + val + end\n : i === arr.length - 1\n ? acc + val\n : acc + val + separator,\n ''\n );", "es6": "const join = (arr, separator = ',', end = separator) =>\n arr.reduce(\n (acc, val, i) =>\n i === arr.length - 2\n ? acc + val + end\n : i === arr.length - 1\n ? acc + val\n : acc + val + separator,\n ''\n );",
"es5": "var join = function join(arr) {\n var separator = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ',';\n var end = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : separator;\n return arr.reduce(function (acc, val, i) {\n return i === arr.length - 2 ? acc + val + end : i === arr.length - 1 ? acc + val : acc + val + separator;\n }, '');\n};", "es5": "var join = function join(arr) {\n var separator = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ',';\n var end = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : separator;\n return arr.reduce(function (acc, val, i) {\n return i === arr.length - 2 ? acc + val + end : i === arr.length - 1 ? acc + val : acc + val + separator;\n }, '');\n};",
"example": "join(['pen', 'pineapple', 'apple', 'pen'], ',', '&'); // \"pen,pineapple,apple&pen\"\njoin(['pen', 'pineapple', 'apple', 'pen'], ','); // \"pen,pineapple,apple,pen\"\njoin(['pen', 'pineapple', 'apple', 'pen']); // \"pen,pineapple,apple,pen\"" "example": "join(['pen', 'pineapple', 'apple', 'pen'], ',', '&'); // \"pen,pineapple,apple&pen\"\njoin(['pen', 'pineapple', 'apple', 'pen'], ','); // \"pen,pineapple,apple,pen\"\njoin(['pen', 'pineapple', 'apple', 'pen']); // \"pen,pineapple,apple,pen\""
}, },
@ -3916,7 +3916,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "362fddaa6244404741e84bca6fc442a101fdb642af53b299e8b9994d0d7162d8" "hash": "3db3faac666ee61ab86c70766d2ab5d1293ffd818da87edb971bfff7a366364a"
} }
}, },
{ {
@ -4667,6 +4667,29 @@
"hash": "ed97cd30b8004ca41939fabebf535f9017868b261ded4c2081c3367fa0ab1847" "hash": "ed97cd30b8004ca41939fabebf535f9017868b261ded4c2081c3367fa0ab1847"
} }
}, },
{
"id": "objectToQueryString",
"title": "objectToQueryString",
"type": "snippet",
"attributes": {
"fileName": "objectToQueryString.md",
"text": "Returns a query string generated from the key-value pairs of the given object.\n\nUse `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.\nDetermine the `symbol` to be either `?` or `&` based on the `index` and concatenate `val` to `queryString` only if it's a string.\nReturn the `queryString` or an empty string when the `queryParameters` are falsy.\n\n",
"codeBlocks": {
"es6": "const objectToQueryString = queryParameters => {\n return queryParameters\n ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {\n const symbol = index === 0 ? '?' : '&';\n queryString += (typeof val === 'string') ? `${symbol}${key}=${val}` : '';\n return queryString;\n }, '')\n : '';\n};",
"es5": "function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); }\n\nfunction _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nvar objectToQueryString = function objectToQueryString(queryParameters) {\n return queryParameters ? Object.entries(queryParameters).reduce(function (queryString, _ref, index) {\n var _ref2 = _slicedToArray(_ref, 2),\n key = _ref2[0],\n val = _ref2[1];\n\n var symbol = index === 0 ? '?' : '&';\n queryString += typeof val === 'string' ? \"\".concat(symbol).concat(key, \"=\").concat(val) : '';\n return queryString;\n }, '') : '';\n};",
"example": "objectToQueryString({page: '1', size: '2kg', key: undefined}); // '?page=1&size=2kg'"
},
"tags": [
"utility",
"object",
"function",
"intermediate"
]
},
"meta": {
"hash": "e87fc52b6d22804ebb9f4adb2acade44183b8db53d101839c6d5cb02aa32419b"
}
},
{ {
"id": "observeMutations", "id": "observeMutations",
"title": "observeMutations", "title": "observeMutations",

1
snippets/checkProp.md
View File

@ -33,6 +33,7 @@ const checkProp = (predicate, prop) => obj => !!predicate(obj[prop]);
const lengthIs4 = checkProp(l => l === 4, 'length'); const lengthIs4 = checkProp(l => l === 4, 'length');

5
snippets/deepClone.md
View File

@ -11,7 +11,6 @@ Use `Object.assign()` and an empty object (`{}`) to create a shallow clone of th
Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned. Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.
```js ```js
const deepClone = obj => { const deepClone = obj => {
if (obj === null) return null; if (obj === null) return null;
let clone = Object.assign({}, obj); let clone = Object.assign({}, obj);
@ -21,8 +20,8 @@ const deepClone = obj => {
return Array.isArray(obj) && obj.length return Array.isArray(obj) && obj.length
? (clone.length = obj.length) && Array.from(clone) ? (clone.length = obj.length) && Array.from(clone)
: Array.isArray(obj) : Array.isArray(obj)
? Array.from(obj) ? Array.from(obj)
: clone; : clone;
}; };
``` ```

5
snippets/deepMapKeys.md
View File

@ -10,18 +10,17 @@ Use `Object.keys(obj)` to iterate over the object's keys.
Use `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`. Use `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.
```js ```js
const deepMapKeys = (obj, f) => const deepMapKeys = (obj, f) =>
Array.isArray(obj) Array.isArray(obj)
? obj.map(val => deepMapKeys(val, f)) ? obj.map(val => deepMapKeys(val, f))
: typeof obj === 'object' : typeof obj === 'object'
? Object.keys(obj).reduce((acc, current) => { ? Object.keys(obj).reduce((acc, current) => {
const val = obj[current]; const val = obj[current];
acc[f(current)] = acc[f(current)] =
val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val); val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
return acc; return acc;
}, {}) }, {})
: obj; : obj;
``` ```
```js ```js

7
snippets/dig.md
View File

@ -9,14 +9,13 @@ Use the `in` operator to check if `target` exists in `obj`.
If found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found. If found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.
```js ```js
const dig = (obj, target) => const dig = (obj, target) =>
target in obj target in obj
? obj[target] ? obj[target]
: Object.values(obj).reduce((acc, val) => { : Object.values(obj).reduce((acc, val) => {
if (acc !== undefined) return acc; if (acc !== undefined) return acc;
if (typeof val === 'object') return dig(val, target); if (typeof val === 'object') return dig(val, target);
}, undefined); }, undefined);
``` ```
```js ```js

9
snippets/factorial.md
View File

@ -11,15 +11,14 @@ Otherwise, return the product of `n` and the factorial of `n - 1`.
Throws an exception if `n` is a negative number. Throws an exception if `n` is a negative number.
```js ```js
const factorial = n => const factorial = n =>
n < 0 n < 0
? (() => { ? (() => {
throw new TypeError('Negative numbers are not allowed!'); throw new TypeError('Negative numbers are not allowed!');
})() })()
: n <= 1 : n <= 1
? 1 ? 1
: n * factorial(n - 1); : n * factorial(n - 1);
``` ```
```js ```js

9
snippets/getMeridiemSuffixOfInteger.md
View File

@ -8,15 +8,14 @@ Converts an integer to a suffixed string, adding `am` or `pm` based on its value
Use the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix. Use the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.
```js ```js
const getMeridiemSuffixOfInteger = num => const getMeridiemSuffixOfInteger = num =>
num === 0 || num === 24 num === 0 || num === 24
? 12 + 'am' ? 12 + 'am'
: num === 12 : num === 12
? 12 + 'pm' ? 12 + 'pm'
: num < 12 : num < 12
? (num % 12) + 'am' ? (num % 12) + 'am'
: (num % 12) + 'pm'; : (num % 12) + 'pm';
``` ```
```js ```js

9
snippets/hasKey.md
View File

@ -10,21 +10,20 @@ Use `typeof` to check if the contents of `obj[key]` are an `object` and, if so,
Otherwise, use `Object.keys(obj)` in combination with `Array.prototype.includes()` to check if the given `key` exists. Otherwise, use `Object.keys(obj)` in combination with `Array.prototype.includes()` to check if the given `key` exists.
```js ```js
const hasKey = (obj, key) => { const hasKey = (obj, key) => {
if (key.includes('.')) { if (key.includes('.')) {
let _key = key.split('.')[0]; let _key = key.split('.')[0];
if (typeof obj[_key] === 'object') if (typeof obj[_key] === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));
return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));
} }
return Object.keys(obj).includes(key); return Object.keys(obj).includes(key);
}; };
``` ```
```js ```js
let obj = { let obj = {
a: 1, b: { c: 4 }, 'd.e': 5 a: 1,
b: { c: 4 },
'd.e': 5
}; };
hasKey(obj, 'a'); // true hasKey(obj, 'a'); // true
hasKey(obj, 'b'); // true hasKey(obj, 'b'); // true

5
snippets/join.md
View File

@ -11,15 +11,14 @@ 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. Omit the third argument, `end`, to use the same value as `separator` by default.
```js ```js
const join = (arr, separator = ',', end = separator) => const join = (arr, separator = ',', end = separator) =>
arr.reduce( arr.reduce(
(acc, val, i) => (acc, val, i) =>
i === arr.length - 2 i === arr.length - 2
? acc + val + end ? acc + val + end
: i === arr.length - 1 : i === arr.length - 1
? acc + val ? acc + val
: acc + val + separator, : acc + val + separator,
'' ''
); );
``` ```

14
snippets/objectToQueryString.md
View File

@ -10,17 +10,19 @@ Determine the `symbol` to be either `?` or `&` based on the `index` and concaten
Return the `queryString` or an empty string when the `queryParameters` are falsy. Return the `queryString` or an empty string when the `queryParameters` are falsy.
```js ```js
const objectToQueryString = (queryParameters) => {
const objectToQueryString = queryParameters => {
return queryParameters return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => { ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {
const symbol = index === 0 ? '?' : '&'; const symbol = index === 0 ? '?' : '&';
queryString += (typeof val === "string") ? `${symbol}${key}=${val}` : ''; queryString += (typeof val === 'string') ? `${symbol}${key}=${val}` : '';
return queryString; return queryString;
}, '') }, '')
: ''; : '';
}; };
``` ```
```js ```js
objectToQueryString({page: '1', size: "2kg", key: undefined}); // '?page=1&size=2kg'
objectToQueryString({page: '1', size: '2kg', key: undefined}); // '?page=1&size=2kg'
``` ```

48
test/_30s.js
View File

@ -199,8 +199,8 @@ const deepClone = obj => {
return Array.isArray(obj) && obj.length return Array.isArray(obj) && obj.length
? (clone.length = obj.length) && Array.from(clone) ? (clone.length = obj.length) && Array.from(clone)
: Array.isArray(obj) : Array.isArray(obj)
? Array.from(obj) ? Array.from(obj)
: clone; : clone;
}; };
const deepFlatten = arr => [].concat(...arr.map(v => (Array.isArray(v) ? deepFlatten(v) : v))); const deepFlatten = arr => [].concat(...arr.map(v => (Array.isArray(v) ? deepFlatten(v) : v)));
const deepFreeze = obj => const deepFreeze = obj =>
@ -212,13 +212,13 @@ const deepMapKeys = (obj, f) =>
Array.isArray(obj) Array.isArray(obj)
? obj.map(val => deepMapKeys(val, f)) ? obj.map(val => deepMapKeys(val, f))
: typeof obj === 'object' : typeof obj === 'object'
? Object.keys(obj).reduce((acc, current) => { ? Object.keys(obj).reduce((acc, current) => {
const val = obj[current]; const val = obj[current];
acc[f(current)] = acc[f(current)] =
val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val); val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
return acc; return acc;
}, {}) }, {})
: obj; : obj;
const defaults = (obj, ...defs) => Object.assign({}, obj, ...defs.reverse(), obj); const defaults = (obj, ...defs) => Object.assign({}, obj, ...defs.reverse(), obj);
const defer = (fn, ...args) => setTimeout(fn, 1, ...args); const defer = (fn, ...args) => setTimeout(fn, 1, ...args);
const degreesToRads = deg => (deg * Math.PI) / 180.0; const degreesToRads = deg => (deg * Math.PI) / 180.0;
@ -240,9 +240,9 @@ const dig = (obj, target) =>
target in obj target in obj
? obj[target] ? obj[target]
: Object.values(obj).reduce((acc, val) => { : Object.values(obj).reduce((acc, val) => {
if (acc !== undefined) return acc; if (acc !== undefined) return acc;
if (typeof val === 'object') return dig(val, target); if (typeof val === 'object') return dig(val, target);
}, undefined); }, undefined);
const digitize = n => [...`${n}`].map(i => parseInt(i)); const digitize = n => [...`${n}`].map(i => parseInt(i));
const distance = (x0, y0, x1, y1) => Math.hypot(x1 - x0, y1 - y0); const distance = (x0, y0, x1, y1) => Math.hypot(x1 - x0, y1 - y0);
const drop = (arr, n = 1) => arr.slice(n); const drop = (arr, n = 1) => arr.slice(n);
@ -314,11 +314,11 @@ const extendHex = shortHex =>
const factorial = n => const factorial = n =>
n < 0 n < 0
? (() => { ? (() => {
throw new TypeError('Negative numbers are not allowed!'); throw new TypeError('Negative numbers are not allowed!');
})() })()
: n <= 1 : n <= 1
? 1 ? 1
: n * factorial(n - 1); : n * factorial(n - 1);
const fibonacci = n => const fibonacci = n =>
Array.from({ length: n }).reduce( Array.from({ length: n }).reduce(
(acc, val, i) => acc.concat(i > 1 ? acc[i - 1] + acc[i - 2] : i), (acc, val, i) => acc.concat(i > 1 ? acc[i - 1] + acc[i - 2] : i),
@ -419,10 +419,10 @@ const getMeridiemSuffixOfInteger = num =>
num === 0 || num === 24 num === 0 || num === 24
? 12 + 'am' ? 12 + 'am'
: num === 12 : num === 12
? 12 + 'pm' ? 12 + 'pm'
: num < 12 : num < 12
? (num % 12) + 'am' ? (num % 12) + 'am'
: (num % 12) + 'pm'; : (num % 12) + 'pm';
const getScrollPosition = (el = window) => ({ const getScrollPosition = (el = window) => ({
x: el.pageXOffset !== undefined ? el.pageXOffset : el.scrollLeft, x: el.pageXOffset !== undefined ? el.pageXOffset : el.scrollLeft,
y: el.pageYOffset !== undefined ? el.pageYOffset : el.scrollTop y: el.pageYOffset !== undefined ? el.pageYOffset : el.scrollTop
@ -469,8 +469,7 @@ const hashNode = val =>
const hasKey = (obj, key) => { const hasKey = (obj, key) => {
if (key.includes('.')) { if (key.includes('.')) {
let _key = key.split('.')[0]; let _key = key.split('.')[0];
if (typeof obj[_key] === 'object') if (typeof obj[_key] === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));
return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));
} }
return Object.keys(obj).includes(key); return Object.keys(obj).includes(key);
}; };
@ -652,8 +651,8 @@ const join = (arr, separator = ',', end = separator) =>
i === arr.length - 2 i === arr.length - 2
? acc + val + end ? acc + val + end
: i === arr.length - 1 : i === arr.length - 1
? acc + val ? acc + val
: acc + val + separator, : acc + val + separator,
'' ''
); );
const JSONtoCSV = (arr, columns, delimiter = ',') => const JSONtoCSV = (arr, columns, delimiter = ',') =>
@ -769,6 +768,15 @@ const nthArg = n => (...args) => args.slice(n)[0];
const nthElement = (arr, n = 0) => (n === -1 ? arr.slice(n) : arr.slice(n, n + 1))[0]; const nthElement = (arr, n = 0) => (n === -1 ? arr.slice(n) : arr.slice(n, n + 1))[0];
const objectFromPairs = arr => arr.reduce((a, [key, val]) => ((a[key] = val), a), {}); const objectFromPairs = arr => arr.reduce((a, [key, val]) => ((a[key] = val), a), {});
const objectToPairs = obj => Object.keys(obj).map(k => [k, obj[k]]); const objectToPairs = obj => Object.keys(obj).map(k => [k, obj[k]]);
const objectToQueryString = queryParameters => {
return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {
const symbol = index === 0 ? '?' : '&';
queryString += (typeof val === 'string') ? `${symbol}${key}=${val}` : '';
return queryString;
}, '')
: '';
};
const observeMutations = (element, callback, options) => { const observeMutations = (element, callback, options) => {
const observer = new MutationObserver(mutations => mutations.forEach(m => callback(m))); const observer = new MutationObserver(mutations => mutations.forEach(m => callback(m)));
observer.observe( observer.observe(
@ -1553,4 +1561,4 @@ const speechSynthesis = message => {
const squareSum = (...args) => args.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0); const squareSum = (...args) => args.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0);
module.exports = {all,allEqual,any,approximatelyEqual,arrayToCSV,arrayToHtmlList,ary,atob,attempt,average,averageBy,bifurcate,bifurcateBy,bind,bindAll,bindKey,binomialCoefficient,bottomVisible,btoa,byteSize,call,capitalize,capitalizeEveryWord,castArray,chainAsync,checkProp,chunk,clampNumber,cloneRegExp,coalesce,coalesceFactory,collectInto,colorize,compact,compactWhitespace,compose,composeRight,converge,copyToClipboard,countBy,counter,countOccurrences,createDirIfNotExists,createElement,createEventHub,CSVToArray,CSVToJSON,currentURL,curry,dayOfYear,debounce,decapitalize,deepClone,deepFlatten,deepFreeze,deepGet,deepMapKeys,defaults,defer,degreesToRads,delay,detectDeviceType,difference,differenceBy,differenceWith,dig,digitize,distance,drop,dropRight,dropRightWhile,dropWhile,elementContains,elementIsVisibleInViewport,elo,equals,escapeHTML,escapeRegExp,everyNth,extendHex,factorial,fibonacci,filterFalsy,filterNonUnique,filterNonUniqueBy,findKey,findLast,findLastIndex,findLastKey,flatten,flattenObject,flip,forEachRight,formatDuration,formToObject,forOwn,forOwnRight,fromCamelCase,functionName,functions,gcd,geometricProgression,get,getColonTimeFromDate,getDaysDiffBetweenDates,getImages,getMeridiemSuffixOfInteger,getScrollPosition,getStyle,getType,getURLParameters,groupBy,hammingDistance,hasClass,hasFlags,hashBrowser,hashNode,hasKey,head,hexToRGB,hide,httpGet,httpPost,httpsRedirect,hz,indentString,indexOfAll,initial,initialize2DArray,initializeArrayWithRange,initializeArrayWithRangeRight,initializeArrayWithValues,initializeNDArray,inRange,insertAfter,insertBefore,intersection,intersectionBy,intersectionWith,invertKeyValues,is,isAbsoluteURL,isAfterDate,isAnagram,isArrayLike,isBeforeDate,isBoolean,isBrowser,isBrowserTabFocused,isDivisible,isDuplexStream,isEmpty,isEven,isFunction,isLowerCase,isNegativeZero,isNil,isNull,isNumber,isObject,isObjectLike,isOdd,isPlainObject,isPrime,isPrimitive,isPromiseLike,isReadableStream,isSameDate,isSorted,isStream,isString,isSymbol,isTravisCI,isUndefined,isUpperCase,isValidJSON,isWeekday,isWeekend,isWritableStream,join,JSONtoCSV,JSONToFile,last,lcm,longestItem,lowercaseKeys,luhnCheck,mapKeys,mapNumRange,mapObject,mapString,mapValues,mask,matches,matchesWith,maxBy,maxDate,maxN,median,memoize,merge,midpoint,minBy,minDate,minN,mostPerformant,negate,nest,nodeListToArray,none,nthArg,nthElement,objectFromPairs,objectToPairs,observeMutations,off,offset,omit,omitBy,on,once,onUserInputChange,orderBy,over,overArgs,pad,palindrome,parseCookie,partial,partialRight,partition,percentile,permutations,pick,pickBy,pipeAsyncFunctions,pipeFunctions,pluralize,powerset,prefix,prettyBytes,primes,promisify,pull,pullAtIndex,pullAtValue,pullBy,radsToDegrees,randomHexColorCode,randomIntArrayInRange,randomIntegerInRange,randomNumberInRange,readFileLines,rearg,recordAnimationFrames,redirect,reducedFilter,reduceSuccessive,reduceWhich,reject,remove,removeNonASCII,renameKeys,reverseString,RGBToHex,round,runAsync,runPromisesInSeries,sample,sampleSize,scrollToTop,sdbm,serializeCookie,serializeForm,setStyle,shallowClone,shank,show,shuffle,similarity,size,sleep,smoothScroll,sortCharactersInString,sortedIndex,sortedIndexBy,sortedLastIndex,sortedLastIndexBy,splitLines,spreadOver,stableSort,standardDeviation,stringPermutations,stripHTMLTags,sum,sumBy,sumPower,symmetricDifference,symmetricDifferenceBy,symmetricDifferenceWith,tail,take,takeRight,takeRightWhile,takeWhile,throttle,times,timeTaken,toCamelCase,toCurrency,toDecimalMark,toggleClass,toHash,toKebabCase,tomorrow,toOrdinalSuffix,toSafeInteger,toSnakeCase,toTitleCase,transform,triggerEvent,truncateString,truthCheckCollection,unary,uncurry,unescapeHTML,unflattenObject,unfold,union,unionBy,unionWith,uniqueElements,uniqueElementsBy,uniqueElementsByRight,uniqueSymmetricDifference,untildify,unzip,unzipWith,URLJoin,UUIDGeneratorBrowser,UUIDGeneratorNode,validateNumber,vectorDistance,when,without,words,xProd,yesNo,yesterday,zip,zipObject,zipWith,binarySearch,celsiusToFahrenheit,cleanObj,collatz,countVowels,factors,fahrenheitToCelsius,fibonacciCountUntilNum,fibonacciUntilNum,heronArea,howManyTimes,httpDelete,httpPut,isArmstrongNumber,isSimilar,JSONToDate,kmphToMph,levenshteinDistance,mphToKmph,pipeLog,quickSort,removeVowels,solveRPN,speechSynthesis,squareSum} module.exports = {all,allEqual,any,approximatelyEqual,arrayToCSV,arrayToHtmlList,ary,atob,attempt,average,averageBy,bifurcate,bifurcateBy,bind,bindAll,bindKey,binomialCoefficient,bottomVisible,btoa,byteSize,call,capitalize,capitalizeEveryWord,castArray,chainAsync,checkProp,chunk,clampNumber,cloneRegExp,coalesce,coalesceFactory,collectInto,colorize,compact,compactWhitespace,compose,composeRight,converge,copyToClipboard,countBy,counter,countOccurrences,createDirIfNotExists,createElement,createEventHub,CSVToArray,CSVToJSON,currentURL,curry,dayOfYear,debounce,decapitalize,deepClone,deepFlatten,deepFreeze,deepGet,deepMapKeys,defaults,defer,degreesToRads,delay,detectDeviceType,difference,differenceBy,differenceWith,dig,digitize,distance,drop,dropRight,dropRightWhile,dropWhile,elementContains,elementIsVisibleInViewport,elo,equals,escapeHTML,escapeRegExp,everyNth,extendHex,factorial,fibonacci,filterFalsy,filterNonUnique,filterNonUniqueBy,findKey,findLast,findLastIndex,findLastKey,flatten,flattenObject,flip,forEachRight,formatDuration,formToObject,forOwn,forOwnRight,fromCamelCase,functionName,functions,gcd,geometricProgression,get,getColonTimeFromDate,getDaysDiffBetweenDates,getImages,getMeridiemSuffixOfInteger,getScrollPosition,getStyle,getType,getURLParameters,groupBy,hammingDistance,hasClass,hasFlags,hashBrowser,hashNode,hasKey,head,hexToRGB,hide,httpGet,httpPost,httpsRedirect,hz,indentString,indexOfAll,initial,initialize2DArray,initializeArrayWithRange,initializeArrayWithRangeRight,initializeArrayWithValues,initializeNDArray,inRange,insertAfter,insertBefore,intersection,intersectionBy,intersectionWith,invertKeyValues,is,isAbsoluteURL,isAfterDate,isAnagram,isArrayLike,isBeforeDate,isBoolean,isBrowser,isBrowserTabFocused,isDivisible,isDuplexStream,isEmpty,isEven,isFunction,isLowerCase,isNegativeZero,isNil,isNull,isNumber,isObject,isObjectLike,isOdd,isPlainObject,isPrime,isPrimitive,isPromiseLike,isReadableStream,isSameDate,isSorted,isStream,isString,isSymbol,isTravisCI,isUndefined,isUpperCase,isValidJSON,isWeekday,isWeekend,isWritableStream,join,JSONtoCSV,JSONToFile,last,lcm,longestItem,lowercaseKeys,luhnCheck,mapKeys,mapNumRange,mapObject,mapString,mapValues,mask,matches,matchesWith,maxBy,maxDate,maxN,median,memoize,merge,midpoint,minBy,minDate,minN,mostPerformant,negate,nest,nodeListToArray,none,nthArg,nthElement,objectFromPairs,objectToPairs,objectToQueryString,observeMutations,off,offset,omit,omitBy,on,once,onUserInputChange,orderBy,over,overArgs,pad,palindrome,parseCookie,partial,partialRight,partition,percentile,permutations,pick,pickBy,pipeAsyncFunctions,pipeFunctions,pluralize,powerset,prefix,prettyBytes,primes,promisify,pull,pullAtIndex,pullAtValue,pullBy,radsToDegrees,randomHexColorCode,randomIntArrayInRange,randomIntegerInRange,randomNumberInRange,readFileLines,rearg,recordAnimationFrames,redirect,reducedFilter,reduceSuccessive,reduceWhich,reject,remove,removeNonASCII,renameKeys,reverseString,RGBToHex,round,runAsync,runPromisesInSeries,sample,sampleSize,scrollToTop,sdbm,serializeCookie,serializeForm,setStyle,shallowClone,shank,show,shuffle,similarity,size,sleep,smoothScroll,sortCharactersInString,sortedIndex,sortedIndexBy,sortedLastIndex,sortedLastIndexBy,splitLines,spreadOver,stableSort,standardDeviation,stringPermutations,stripHTMLTags,sum,sumBy,sumPower,symmetricDifference,symmetricDifferenceBy,symmetricDifferenceWith,tail,take,takeRight,takeRightWhile,takeWhile,throttle,times,timeTaken,toCamelCase,toCurrency,toDecimalMark,toggleClass,toHash,toKebabCase,tomorrow,toOrdinalSuffix,toSafeInteger,toSnakeCase,toTitleCase,transform,triggerEvent,truncateString,truthCheckCollection,unary,uncurry,unescapeHTML,unflattenObject,unfold,union,unionBy,unionWith,uniqueElements,uniqueElementsBy,uniqueElementsByRight,uniqueSymmetricDifference,untildify,unzip,unzipWith,URLJoin,UUIDGeneratorBrowser,UUIDGeneratorNode,validateNumber,vectorDistance,when,without,words,xProd,yesNo,yesterday,zip,zipObject,zipWith,binarySearch,celsiusToFahrenheit,cleanObj,collatz,countVowels,factors,fahrenheitToCelsius,fibonacciCountUntilNum,fibonacciUntilNum,heronArea,howManyTimes,httpDelete,httpPut,isArmstrongNumber,isSimilar,JSONToDate,kmphToMph,levenshteinDistance,mphToKmph,pipeLog,quickSort,removeVowels,solveRPN,speechSynthesis,squareSum}

52
vscode_snippets/snippets.json
View File

@ -512,8 +512,8 @@
" return Array.isArray(obj) && obj.length", " return Array.isArray(obj) && obj.length",
" ? (clone.length = obj.length) && Array.from(clone)", " ? (clone.length = obj.length) && Array.from(clone)",
" : Array.isArray(obj)", " : Array.isArray(obj)",
" ? Array.from(obj)", " ? Array.from(obj)",
" : clone;", " : clone;",
"};" "};"
], ],
"description": "Creates a deep clone of an object.\n\nUse recursion.\nCheck if the passed object is `null` and, if so, return `null`.\nUse `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.\nUse `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.\n" "description": "Creates a deep clone of an object.\n\nUse recursion.\nCheck if the passed object is `null` and, if so, return `null`.\nUse `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.\nUse `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.\n"
@ -549,13 +549,13 @@
" Array.isArray(obj)", " Array.isArray(obj)",
" ? obj.map(val => deepMapKeys(val, f))", " ? obj.map(val => deepMapKeys(val, f))",
" : typeof obj === 'object'", " : typeof obj === 'object'",
" ? Object.keys(obj).reduce((acc, current) => {", " ? Object.keys(obj).reduce((acc, current) => {",
" const val = obj[current];", " const val = obj[current];",
" acc[f(current)] =", " acc[f(current)] =",
" val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);", " val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);",
" return acc;", " return acc;",
" }, {})", " }, {})",
" : obj;" " : obj;"
], ],
"description": "Deep maps an object's keys.\n\nCreates an object with the same values as the provided object and keys generated by running the provided function for each key.\nUse `Object.keys(obj)` to iterate over the object's keys. \nUse `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.\n" "description": "Deep maps an object's keys.\n\nCreates an object with the same values as the provided object and keys generated by running the provided function for each key.\nUse `Object.keys(obj)` to iterate over the object's keys. \nUse `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.\n"
}, },
@ -631,9 +631,9 @@
" target in obj", " target in obj",
" ? obj[target]", " ? obj[target]",
" : Object.values(obj).reduce((acc, val) => {", " : Object.values(obj).reduce((acc, val) => {",
" if (acc !== undefined) return acc;", " if (acc !== undefined) return acc;",
" if (typeof val === 'object') return dig(val, target);", " if (typeof val === 'object') return dig(val, target);",
" }, undefined);" " }, undefined);"
], ],
"description": "Returns the target value in a nested JSON object, based on the given key.\n\nUse the `in` operator to check if `target` exists in `obj`.\nIf found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.\n" "description": "Returns the target value in a nested JSON object, based on the given key.\n\nUse the `in` operator to check if `target` exists in `obj`.\nIf found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.\n"
}, },
@ -795,11 +795,11 @@
"const factorial = n =>", "const factorial = n =>",
" n < 0", " n < 0",
" ? (() => {", " ? (() => {",
" throw new TypeError('Negative numbers are not allowed!');", " throw new TypeError('Negative numbers are not allowed!');",
" })()", " })()",
" : n <= 1", " : n <= 1",
" ? 1", " ? 1",
" : n * factorial(n - 1);" " : n * factorial(n - 1);"
], ],
"description": "Calculates the factorial of a number.\n\nUse recursion.\nIf `n` is less than or equal to `1`, return `1`.\nOtherwise, return the product of `n` and the factorial of `n - 1`.\nThrows an exception if `n` is a negative number.\n" "description": "Calculates the factorial of a number.\n\nUse recursion.\nIf `n` is less than or equal to `1`, return `1`.\nOtherwise, return the product of `n` and the factorial of `n - 1`.\nThrows an exception if `n` is a negative number.\n"
}, },
@ -1056,10 +1056,10 @@
" num === 0 || num === 24", " num === 0 || num === 24",
" ? 12 + 'am'", " ? 12 + 'am'",
" : num === 12", " : num === 12",
" ? 12 + 'pm'", " ? 12 + 'pm'",
" : num < 12", " : num < 12",
" ? (num % 12) + 'am'", " ? (num % 12) + 'am'",
" : (num % 12) + 'pm';" " : (num % 12) + 'pm';"
], ],
"description": "Converts an integer to a suffixed string, adding `am` or `pm` based on its value.\n\nUse the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.\n" "description": "Converts an integer to a suffixed string, adding `am` or `pm` based on its value.\n\nUse the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.\n"
}, },
@ -1172,8 +1172,7 @@
"const hasKey = (obj, key) => {", "const hasKey = (obj, key) => {",
" if (key.includes('.')) {", " if (key.includes('.')) {",
" let _key = key.split('.')[0];", " let _key = key.split('.')[0];",
" if (typeof obj[_key] === 'object')", " if (typeof obj[_key] === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));",
" return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));",
" }", " }",
" return Object.keys(obj).includes(key);", " return Object.keys(obj).includes(key);",
"};" "};"
@ -1727,8 +1726,8 @@
" i === arr.length - 2", " i === arr.length - 2",
" ? acc + val + end", " ? acc + val + end",
" : i === arr.length - 1", " : i === arr.length - 1",
" ? acc + val", " ? acc + val",
" : acc + val + separator,", " : acc + val + separator,",
" ''", " ''",
" );" " );"
], ],
@ -2051,6 +2050,21 @@
], ],
"description": "Creates an array of key-value pair arrays from an object.\n\nUse `Object.keys()` and `Array.prototype.map()` to iterate over the object's keys and produce an array with key-value pairs.\n" "description": "Creates an array of key-value pair arrays from an object.\n\nUse `Object.keys()` and `Array.prototype.map()` to iterate over the object's keys and produce an array with key-value pairs.\n"
}, },
"objectToQueryString": {
"prefix": "30s_objectToQueryString",
"body": [
"const objectToQueryString = queryParameters => {",
" return queryParameters",
" ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {",
" const symbol = index === 0 ? '?' : '&';",
" queryString += (typeof val === 'string') ? `${symbol}${key}=${val}` : '';",
" return queryString;",
" }, '')",
" : '';",
"};"
],
"description": "Returns a query string generated from the key-value pairs of the given object.\n\nUse `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.\nDetermine the `symbol` to be either `?` or `&` based on the `index` and concatenate `val` to `queryString` only if it's a string.\nReturn the `queryString` or an empty string when the `queryParameters` are falsy.\n"
},
"observeMutations": { "observeMutations": {
"prefix": "30s_observeMutations", "prefix": "30s_observeMutations",
"body": [ "body": [