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Merge branch 'patch-1' of https://github.com/kriadmin/30-seconds-of-code

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This commit is contained in:
Rohit Tanwar
2018-01-01 16:29:24 +05:30
parent 0603022785 94f83072cf
commit d8e4dd9025
13 changed files with 444 additions and 146 deletions
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19
.travis/push.sh
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@ -4,14 +4,23 @@ setup_git() {
}
commit_website_files() {
git checkout master
git add *
git commit --message "Travis build: $TRAVIS_BUILD_NUMBER"
if [ $TRAVIS_EVENT_TYPE != "pull_request" ]; then
if [ $TRAVIS_BRANCH == "master" ]; then
echo "Commiting to master branch..."
git checkout master
git add *
git commit --message "Travis build: $TRAVIS_BUILD_NUMBER [ci skip]"
fi
fi
}
upload_files() {
echo "https://${GH_TOKEN}@github.com/Chalarangelo/30-seconds-of-code.git"
git push --force "https://${GH_TOKEN}@github.com/Chalarangelo/30-seconds-of-code.git" master > /dev/null 2>&1
if [ $TRAVIS_EVENT_TYPE != "pull_request" ]; then
if [ $TRAVIS_BRANCH == "master" ]; then
echo "Pushing to master branch..."
git push --force --quiet "https://${GH_TOKEN}@github.com/Chalarangelo/30-seconds-of-code.git" master > /dev/null 2>&1
fi
fi
}
setup_git

271
README.md
View File

@ -9,11 +9,13 @@
- Use <kbd>Ctrl</kbd> + <kbd>F</kbd> or <kbd>command</kbd> + <kbd>F</kbd> to search for a snippet.
- Contributions welcome, please read the [contribution guide](CONTRIBUTING.md).
- Snippets are written in ES6, use the [Babel transpiler](https://babeljs.io/) to ensure backwards-compatibility.
- You can import these snippets into your text editor of choice (VSCode, Atom, Sublime) using the files found in [this repo](https://github.com/Rob-Rychs/30-seconds-of-code-texteditorsnippets).
- You can import these snippets into Alfred 3, using [this file](https://github.com/lslvxy/30-seconds-of-code-alfredsnippets).
- You can find a package with all the snippets on [npm](https://www.npmjs.com/package/tsoc). Bear in mind that most of these snippets are not production-ready.
## Table of Contents
### Adapter
### 🔌 Adapter
<details>
<summary>View contents</summary>
@ -27,7 +29,7 @@
</details>
### Array
### 📚 Array
<details>
<summary>View contents</summary>
@ -75,13 +77,14 @@
</details>
### Browser
### 🖥️ Browser
<details>
<summary>View contents</summary>
* [`arrayToHtmlList`](#arraytohtmllist)
* [`bottomVisible`](#bottomvisible)
* [`copyToClipboard`](#copytoclipboard)
* [`currentURL`](#currenturl)
* [`detectDeviceType`](#detectdevicetype)
* [`elementIsVisibleInViewport`](#elementisvisibleinviewport)
@ -96,12 +99,13 @@
* [`scrollToTop`](#scrolltotop)
* [`setStyle`](#setstyle)
* [`show`](#show)
* [`speechSynthesis`](#speechsynthesis)
* [`toggleClass`](#toggleclass)
* [`UUIDGeneratorBrowser`](#uuidgeneratorbrowser)
</details>
### Date
### ⏱️ Date
<details>
<summary>View contents</summary>
@ -113,7 +117,7 @@
</details>
### Function
### 🎛️ Function
<details>
<summary>View contents</summary>
@ -127,7 +131,7 @@
</details>
### Logic
### 🔮 Logic
<details>
<summary>View contents</summary>
@ -136,7 +140,7 @@
</details>
### Math
### ➗ Math
<details>
<summary>View contents</summary>
@ -172,16 +176,7 @@
</details>
### Media
<details>
<summary>View contents</summary>
* [`speechSynthesis`](#speechsynthesis)
</details>
### Node
### 📦 Node
<details>
<summary>View contents</summary>
@ -192,7 +187,7 @@
</details>
### Object
### 🗃️ Object
<details>
<summary>View contents</summary>
@ -204,11 +199,12 @@
* [`orderBy`](#orderby)
* [`select`](#select)
* [`shallowClone`](#shallowclone)
* [`size`](#size)
* [`truthCheckCollection`](#truthcheckcollection)
</details>
### String
### 📜 String
<details>
<summary>View contents</summary>
@ -235,7 +231,7 @@
</details>
### Utility
### 💎 Utility
<details>
<summary>View contents</summary>
@ -248,6 +244,7 @@
* [`isArray`](#isarray)
* [`isBoolean`](#isboolean)
* [`isFunction`](#isfunction)
* [`isNull`](#isnull)
* [`isNumber`](#isnumber)
* [`isString`](#isstring)
* [`isSymbol`](#issymbol)
@ -258,10 +255,12 @@
* [`toDecimalMark`](#todecimalmark)
* [`toOrdinalSuffix`](#toordinalsuffix)
* [`validateNumber`](#validatenumber)
* [`yesNo`](#yesno)
</details>
## Adapter
---
## 🔌 Adapter
### call
@ -423,7 +422,8 @@ arrayMax([1, 2, 4]); // 4
<br>[⬆ Back to top](#table-of-contents)
## Array
---
## 📚 Array
### chunk
@ -1436,7 +1436,8 @@ zipObject(['a', 'b'], [1, 2, 3]); // {a: 1, b: 2}
<br>[⬆ Back to top](#table-of-contents)
## Browser
---
## 🖥️ Browser
### arrayToHtmlList
@ -1485,6 +1486,48 @@ bottomVisible(); // true
<br>[⬆ Back to top](#table-of-contents)
### copyToClipboard
Copy a string to the clipboard. Only works as a result of user action (i.e. inside a `click` event listener).
Create a new `<textarea>` element, fill it with the supplied data and add it to the HTML document.
Use `Selection.getRangeAt()`to store the selected range (if any).
Use `document.execCommand('copy')` to copy to the clipboard.
Remove the `<textarea>` element from the HTML document.
Finally, use `Selection().addRange()` to recover the original selected range (if any).
```js
const copyToClipboard = str => {
const el = document.createElement('textarea');
el.value = str;
el.setAttribute('readonly', '');
el.style.position = 'absolute';
el.style.left = '-9999px';
document.body.appendChild(el);
const selected =
document.getSelection().rangeCount > 0 ? document.getSelection().getRangeAt(0) : false;
el.select();
document.execCommand('copy');
document.body.removeChild(el);
if (selected) {
document.getSelection().removeAllRanges();
document.getSelection().addRange(selected);
}
};
```
<details>
<summary>Examples</summary>
```js
copyToClipboard('Lorem ipsum'); // 'Lorem ipsum' copied to clipboard.
```
</details>
<br>[⬆ Back to top](#table-of-contents)
### currentURL
Returns the current URL.
@ -1841,6 +1884,35 @@ show(document.querySelectorAll('img')); // Shows all <img> elements on the page
<br>[⬆ Back to top](#table-of-contents)
### speechSynthesis
Performs speech synthesis (experimental).
Use `SpeechSynthesisUtterance.voice` and `window.speechSynthesis.getVoices()` to convert a message to speech.
Use `window.speechSynthesis.speak()` to play the message.
Learn more about the [SpeechSynthesisUtterance interface of the Web Speech API](https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance).
```js
const speechSynthesis = message => {
const msg = new SpeechSynthesisUtterance(message);
msg.voice = window.speechSynthesis.getVoices()[0];
window.speechSynthesis.speak(msg);
};
```
<details>
<summary>Examples</summary>
```js
speechSynthesis('Hello, World'); // // plays the message
```
</details>
<br>[⬆ Back to top](#table-of-contents)
### toggleClass
Toggle a class for an element.
@ -1887,7 +1959,8 @@ UUIDGeneratorBrowser(); // '7982fcfe-5721-4632-bede-6000885be57d'
<br>[⬆ Back to top](#table-of-contents)
## Date
---
## ⏱️ Date
### getDaysDiffBetweenDates
@ -1987,7 +2060,8 @@ tomorrow(); // 2017-12-27 (if current date is 2017-12-26)
<br>[⬆ Back to top](#table-of-contents)
## Function
---
## 🎛️ Function
### chainAsync
@ -2150,7 +2224,8 @@ async function sleepyWork() {
<br>[⬆ Back to top](#table-of-contents)
## Logic
---
## 🔮 Logic
### negate
@ -2174,7 +2249,8 @@ negate(isOdd)(1); // false
<br>[⬆ Back to top](#table-of-contents)
## Math
---
## ➗ Math
### average
@ -2397,7 +2473,7 @@ const fibonacciUntilNum = num => {
<summary>Examples</summary>
```js
fibonacciCountUntilNum(10); // 7
fibonacciUntilNum(10); // [ 0, 1, 1, 2, 3, 5, 8 ]
```
</details>
@ -2567,7 +2643,7 @@ Return `false` if any of them divides the given number, else return `true`, unle
```js
const isPrime = num => {
const boundary = Math.floor(Math.sqrt(num));
for (var i = 2; i * i <= boundary; i++) if (num % i == 0) return false;
for (var i = 2; i <= boundary; i++) if (num % i == 0) return false;
return num >= 2;
};
```
@ -2879,37 +2955,8 @@ sum([1, 2, 3, 4]); // 10
<br>[⬆ Back to top](#table-of-contents)
## Media
### speechSynthesis
Performs speech synthesis (experimental).
Use `SpeechSynthesisUtterance.voice` and `window.speechSynthesis.getVoices()` to convert a message to speech.
Use `window.speechSynthesis.speak()` to play the message.
Learn more about the [SpeechSynthesisUtterance interface of the Web Speech API](https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance).
```js
const speechSynthesis = message => {
const msg = new SpeechSynthesisUtterance(message);
msg.voice = window.speechSynthesis.getVoices()[0];
window.speechSynthesis.speak(msg);
};
```
<details>
<summary>Examples</summary>
```js
speechSynthesis('Hello, World'); // // plays the message
```
</details>
<br>[⬆ Back to top](#table-of-contents)
## Node
---
## 📦 Node
### JSONToFile
@ -2998,7 +3045,8 @@ UUIDGeneratorNode(); // '79c7c136-60ee-40a2-beb2-856f1feabefc'
<br>[⬆ Back to top](#table-of-contents)
## Object
---
## 🗃️ Object
### cleanObj
@ -3192,6 +3240,40 @@ a === b; // false
<br>[⬆ Back to top](#table-of-contents)
### size
Get size of arrays, objects or strings.
Get type of `value` (`array`, `object` or `string`).
Use `length` property for arrays.
Use `length` or `size` value if available or number of keys for objects.
Use `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `value` for strings.
Split strings into array of characters with `split('')` and return its length.
```js
const size = value =>
Array.isArray(value)
? value.length
: value && typeof value === 'object'
? value.size || value.length || Object.keys(value).length
: typeof value === 'string' ? new Blob([value]).size : 0;
```
<details>
<summary>Examples</summary>
```js
size([1, 2, 3, 4, 5]); // 5
size('size'); // 4
size({ one: 1, two: 2, three: 3 }); // 3
```
</details>
<br>[⬆ Back to top](#table-of-contents)
### truthCheckCollection
Checks if the predicate (second argument) is truthy on all elements of a collection (first argument).
@ -3213,7 +3295,8 @@ truthCheckCollection([{ user: 'Tinky-Winky', sex: 'male' }, { user: 'Dipsy', sex
<br>[⬆ Back to top](#table-of-contents)
## String
---
## 📜 String
### anagrams
@ -3632,13 +3715,12 @@ Break the string into words and combine them using `_` as a separator.
For more detailed explanation of this Regex, [visit this Site](https://regex101.com/r/bMCgAB/1).
```js
const toSnakeCase = str => {
const toSnakeCase = str =>
str &&
str
.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.toLowerCase())
.join('_');
};
str
.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.toLowerCase())
.join('_');
```
<details>
@ -3737,7 +3819,8 @@ words('python, javaScript & coffee'); // ["python", "javaScript", "coffee"]
<br>[⬆ Back to top](#table-of-contents)
## Utility
---
## 💎 Utility
### coalesce
@ -3947,6 +4030,29 @@ isFunction(x => x); // true
<br>[⬆ Back to top](#table-of-contents)
### isNull
Returns `true` if the specified value is `null`, `false` otherwise.
Use the strict equality operator to check if the value and of `val` are equal to `null`.
```js
const isNull = val => val === null;
```
<details>
<summary>Examples</summary>
```js
isNull(null); // true
isNull('null'); // false
```
</details>
<br>[⬆ Back to top](#table-of-contents)
### isNumber
Checks if the given argument is a number.
@ -4199,6 +4305,33 @@ validateNumber('10'); // true
<br>[⬆ Back to top](#table-of-contents)
### yesNo
Returns `true` if the string is `y`/`yes` or `false` if the string is `n`/`no`.
Use `RegExp.test()` to check if the string evaluates to `y/yes` or `n/no`.
Omit the second argument, `def` to set the default answer as `no`.
```js
const yesNo = (val, def = false) =>
/^(y|yes)$/i.test(val) ? true : /^(n|no)$/i.test(val) ? false : def;
```
<details>
<summary>Examples</summary>
```js
yesNo('Y'); // true
yesNo('yes'); // true
yesNo('No'); // false
yesNo('Foo', true); // true
```
</details>
<br>[⬆ Back to top](#table-of-contents)
## Credits
*Icons made by [Smashicons](https://www.flaticon.com/authors/smashicons) from [www.flaticon.com](https://www.flaticon.com/) is licensed by [CC 3.0 BY](http://creativecommons.org/licenses/by/3.0/).*

65
docs/index.html
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File diff suppressed because one or more lines are too long

122
scripts/build.js
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@ -3,51 +3,64 @@
Run using `npm run builder`.
*/
// Load modules
const fs = require('fs-extra'),
path = require('path'),
chalk = require('chalk');
// Set variables for paths
const snippetsPath = './snippets',
staticPartsPath = './static-parts';
// Set variables for script
let snippets = {},
startPart = '',
const fs = require('fs-extra');
const path = require('path');
const chalk = require('chalk');
const SNIPPETS_PATH = './snippets';
const STATIC_PARTS_PATH = './static-parts';
const snippets = {};
const EMOJIS = {
adapter: '🔌',
array: '📚',
browser: '🌐',
date: '⏱️',
function: '🎛️',
logic: '🔮',
math: '➗',
media: '📺',
node: '📦',
object: '🗃️',
string: '📜',
utility: '💎'
};
let startPart = '',
endPart = '',
output = '',
tagDbData = {};
// Load helper functions (these are from existing snippets in 30 seconds of code!)
const objectFromPairs = arr => arr.reduce((a, v) => ((a[v[0]] = v[1]), a), {});
const capitalize = (str, lowerRest = false) =>
str.slice(0, 1).toUpperCase() + (lowerRest ? str.slice(1).toLowerCase() : str.slice(1));
// Start the timer of the script
console.time('Builder');
// Synchronously read all snippets and sort them as necessary (case-insensitive)
try {
let snippetFilenames = fs.readdirSync(snippetsPath);
snippetFilenames.sort((a, b) => {
a = a.toLowerCase();
b = b.toLowerCase();
if (a < b) return -1;
if (a > b) return 1;
return 0;
});
const snippetFilenames = fs
.readdirSync(SNIPPETS_PATH)
.sort((a, b) => a.toLowerCase() - b.toLowerCase());
// Store the data read from each snippet in the appropriate object
for (let snippet of snippetFilenames)
snippets[snippet] = fs.readFileSync(path.join(snippetsPath, snippet), 'utf8');
for (const name of snippetFilenames) {
snippets[name] = fs.readFileSync(path.join(SNIPPETS_PATH, name), 'utf8');
}
} catch (err) {
// Handle errors (hopefully not!)
console.log(`${chalk.red('ERROR!')} During snippet loading: ${err}`);
process.exit(1);
}
// Load static parts for the README file
try {
startPart = fs.readFileSync(path.join(staticPartsPath, 'README-start.md'), 'utf8');
endPart = fs.readFileSync(path.join(staticPartsPath, 'README-end.md'), 'utf8');
startPart = fs.readFileSync(path.join(STATIC_PARTS_PATH, 'README-start.md'), 'utf8');
endPart = fs.readFileSync(path.join(STATIC_PARTS_PATH, 'README-end.md'), 'utf8');
} catch (err) {
// Handle errors (hopefully not!)
console.log(`${chalk.red('ERROR!')} During static part loading: ${err}`);
process.exit(1);
}
// Load tag data from the database
try {
tagDbData = objectFromPairs(
@ -58,48 +71,62 @@ try {
.map(v => v.split(':').slice(0, 2))
);
} catch (err) {
// Handle errors (hopefully not!)
console.log(`${chalk.red('ERROR!')} During tag database loading: ${err}`);
process.exit(1);
}
// Create the output for the README file
try {
const tags = [
...new Set(
Object.entries(tagDbData)
.map(t => t[1])
.filter(v => v)
.sort((a, b) => a.localeCompare(b))
)
];
// Add the start static part
output += `${startPart + '\n'}`;
// Loop over tags and snippets to create the table of contents
let uncategorizedOutput = '';
for (let tag of [...new Set(Object.entries(tagDbData).map(t => t[1]))]
.filter(v => v)
.sort((a, b) => a.localeCompare(b))) {
if (capitalize(tag, true) == 'Uncategorized') {
uncategorizedOutput += `### _${capitalize(
tag,
true
)}_\n\n<details>\n<summary>View contents</summary>\n\n`;
for (let taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag))
// Loop over tags and snippets to create the table of contents
for (const tag of tags) {
const capitalizedTag = capitalize(tag, true);
if (capitalizedTag === 'Uncategorized') {
uncategorizedOutput += `### _${capitalizedTag}_\n\n<details>\n<summary>View contents</summary>\n\n`;
for (const taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag)) {
uncategorizedOutput += `* [\`${taggedSnippet[0]}\`](#${taggedSnippet[0].toLowerCase()})\n`;
}
uncategorizedOutput += '\n</details>\n\n';
} else {
output += `### ${capitalize(tag, true)}\n\n<details>\n<summary>View contents</summary>\n\n`;
for (let taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag))
output += `### ${
EMOJIS[tag] || ''
} ${capitalizedTag}\n\n<details>\n<summary>View contents</summary>\n\n`;
for (const taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag)) {
output += `* [\`${taggedSnippet[0]}\`](#${taggedSnippet[0].toLowerCase()})\n`;
}
output += '\n</details>\n\n';
}
}
output += uncategorizedOutput;
uncategorizedOutput = '';
// Loop over tags and snippets to create the list of snippets
for (let tag of [...new Set(Object.entries(tagDbData).map(t => t[1]))]
.filter(v => v)
.sort((a, b) => a.localeCompare(b))) {
if (capitalize(tag, true) == 'Uncategorized') {
uncategorizedOutput += `## _${capitalize(tag, true)}_\n`;
for (let taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag))
for (const tag of tags) {
const capitalizedTag = capitalize(tag, true);
if (capitalizedTag == 'Uncategorized') {
uncategorizedOutput += `---\n ## _${capitalizedTag}_\n`;
for (const taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag)) {
uncategorizedOutput += `\n${snippets[taggedSnippet[0] + '.md'] +
'\n<br>[⬆ back to top](#table-of-contents)\n\n'}`;
}
} else {
output += `## ${capitalize(tag, true)}\n`;
for (let taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag)) {
output += `---\n ## ${EMOJIS[tag] || ''} ${capitalizedTag}\n`;
for (const taggedSnippet of Object.entries(tagDbData).filter(v => v[1] === tag)) {
let data = snippets[taggedSnippet[0] + '.md'];
data =
data.slice(0, data.lastIndexOf('```js')) +
@ -111,17 +138,16 @@ try {
}
}
}
output += uncategorizedOutput;
// Add the ending static part
output += `\n${endPart + '\n'}`;
// Write to the README file
fs.writeFileSync('README.md', output);
} catch (err) {
// Handle errors (hopefully not!)
console.log(`${chalk.red('ERROR!')} During README generation: ${err}`);
process.exit(1);
}
// Log a success message
console.log(`${chalk.green('SUCCESS!')} README file generated!`);
// Log the time taken
console.timeEnd('Builder');

33
snippets/copyToClipboard.md Normal file
View File

@ -0,0 +1,33 @@
### copyToClipboard
Copy a string to the clipboard. Only works as a result of user action (i.e. inside a `click` event listener).
Create a new `<textarea>` element, fill it with the supplied data and add it to the HTML document.
Use `Selection.getRangeAt()`to store the selected range (if any).
Use `document.execCommand('copy')` to copy to the clipboard.
Remove the `<textarea>` element from the HTML document.
Finally, use `Selection().addRange()` to recover the original selected range (if any).
```js
const copyToClipboard = str => {
const el = document.createElement('textarea');
el.value = str;
el.setAttribute('readonly', '');
el.style.position = 'absolute';
el.style.left = '-9999px';
document.body.appendChild(el);
const selected =
document.getSelection().rangeCount > 0 ? document.getSelection().getRangeAt(0) : false;
el.select();
document.execCommand('copy');
document.body.removeChild(el);
if (selected) {
document.getSelection().removeAllRanges();
document.getSelection().addRange(selected);
}
};
```
```js
copyToClipboard('Lorem ipsum'); // 'Lorem ipsum' copied to clipboard.
```

2
snippets/fibonacciUntilNum.md
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@ -17,5 +17,5 @@ const fibonacciUntilNum = num => {
```
```js
fibonacciCountUntilNum(10); // 7
fibonacciUntilNum(10); // [ 0, 1, 1, 2, 3, 5, 8 ]
```

14
snippets/isNull.md Normal file
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@ -0,0 +1,14 @@
### isNull
Returns `true` if the specified value is `null`, `false` otherwise.
Use the strict equality operator to check if the value and of `val` are equal to `null`.
```js
const isNull = val => val === null;
```
```js
isNull(null); // true
isNull('null'); // false
```

2
snippets/isPrime.md
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@ -8,7 +8,7 @@ Return `false` if any of them divides the given number, else return `true`, unle
```js
const isPrime = num => {
const boundary = Math.floor(Math.sqrt(num));
for (var i = 2; i * i <= boundary; i++) if (num % i == 0) return false;
for (var i = 2; i <= boundary; i++) if (num % i == 0) return false;
return num >= 2;
};
```

25
snippets/size.md Normal file
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@ -0,0 +1,25 @@
### size
Get size of arrays, objects or strings.
Get type of `value` (`array`, `object` or `string`).
Use `length` property for arrays.
Use `length` or `size` value if available or number of keys for objects.
Use `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `value` for strings.
Split strings into array of characters with `split('')` and return its length.
```js
const size = value =>
Array.isArray(value)
? value.length
: value && typeof value === 'object'
? value.size || value.length || Object.keys(value).length
: typeof value === 'string' ? new Blob([value]).size : 0;
```
```js
size([1, 2, 3, 4, 5]); // 5
size('size'); // 4
size({ one: 1, two: 2, three: 3 }); // 3
```

11
snippets/toSnakeCase.md
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@ -6,13 +6,12 @@ Break the string into words and combine them using `_` as a separator.
For more detailed explanation of this Regex, [visit this Site](https://regex101.com/r/bMCgAB/1).
```js
const toSnakeCase = str => {
const toSnakeCase = str =>
str &&
str
.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.toLowerCase())
.join('_');
};
str
.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.toLowerCase())
.join('_');
```
```js

18
snippets/yesNo.md Normal file
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@ -0,0 +1,18 @@
### yesNo
Returns `true` if the string is `y`/`yes` or `false` if the string is `n`/`no`.
Use `RegExp.test()` to check if the string evaluates to `y/yes` or `n/no`.
Omit the second argument, `def` to set the default answer as `no`.
```js
const yesNo = (val, def = false) =>
/^(y|yes)$/i.test(val) ? true : /^(n|no)$/i.test(val) ? false : def;
```
```js
yesNo('Y'); // true
yesNo('yes'); // true
yesNo('No'); // false
yesNo('Foo', true); // true
```

2
static-parts/README-start.md
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@ -9,6 +9,8 @@
- Use <kbd>Ctrl</kbd> + <kbd>F</kbd> or <kbd>command</kbd> + <kbd>F</kbd> to search for a snippet.
- Contributions welcome, please read the [contribution guide](CONTRIBUTING.md).
- Snippets are written in ES6, use the [Babel transpiler](https://babeljs.io/) to ensure backwards-compatibility.
- You can import these snippets into your text editor of choice (VSCode, Atom, Sublime) using the files found in [this repo](https://github.com/Rob-Rychs/30-seconds-of-code-texteditorsnippets).
- You can import these snippets into Alfred 3, using [this file](https://github.com/lslvxy/30-seconds-of-code-alfredsnippets).
- You can find a package with all the snippets on [npm](https://www.npmjs.com/package/tsoc). Bear in mind that most of these snippets are not production-ready.
## Table of Contents

6
tag_database
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@ -16,6 +16,7 @@ collatz:math
collectInto:adapter
compact:array
compose:function
copyToClipboard:browser
countOccurrences:array
countVowels:string
currentURL:browser
@ -69,6 +70,7 @@ isBoolean:utility
isDivisible:math
isEven:math
isFunction:utility
isNull:utility
isNumber:utility
isPrime:math
isString:utility
@ -119,9 +121,10 @@ shallowClone:object
show:browser
shuffle:array
similarity:array
size:object
sleep:function
sortCharactersInString:string
speechSynthesis:media
speechSynthesis:browser
splitLines:string
spreadOver:adapter
standardDeviation:math
@ -148,5 +151,6 @@ UUIDGeneratorNode:node
validateNumber:utility
without:array
words:string
yesNo:utility
zip:array
zipObject:array