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30secondsofcode
2018-06-07 19:21:52 +00:00
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README.md
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> Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less.
[![Sponsored by DigitalOcean](/sponsored_by_DigitalOcean.png)](https://www.digitalocean.com)
- 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).

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@ -152,4 +152,4 @@ Object<span class="token punctuation">.</span><span class="token function">assig
<span class="token function">arrayMax</span><span class="token punctuation">([</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">]);</span> <span class="token comment">// 3</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid"><h3 id="unary" class="section double-padded">unary</h3><div class="section double-padded"><p>Creates a function that accepts up to one argument, ignoring any additional arguments.</p><p>Call the provided function, <code>fn</code>, with just the first argument given.</p><pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">unary</span> <span class="token operator">=</span> fn <span class="token operator">=></span> val <span class="token operator">=></span> <span class="token function">fn</span><span class="token punctuation">(</span>val<span class="token punctuation">);</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token punctuation">[</span><span class="token string">'6'</span><span class="token punctuation">,</span> <span class="token string">'8'</span><span class="token punctuation">,</span> <span class="token string">'10'</span><span class="token punctuation">].</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token function">unary</span><span class="token punctuation">(</span>parseInt<span class="token punctuation">));</span> <span class="token comment">// [6, 8, 10]</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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window<span class="token punctuation">.</span>speechSynthesis<span class="token punctuation">.</span><span class="token function">speak</span><span class="token punctuation">(</span>msg<span class="token punctuation">);
};</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">speechSynthesis</span><span class="token punctuation">(</span><span class="token string">'Hello, World'</span><span class="token punctuation">);</span> <span class="token comment">// // plays the message</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div></div></div></div><button class="scroll-to-top">&uarr;</button><br/><footer class="container"><div class="row"><div class="col-sm-12 col-md-10 col-lg-8 col-md-offset-1 col-lg-offset-2"><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></div></div></footer></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div></div></div></div><button class="scroll-to-top">&uarr;</button><br/><footer class="container"><div class="row"><div class="col-sm-12 col-md-10 col-lg-8 col-md-offset-1 col-lg-offset-2"><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></div></div></footer></body></html>

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@ -554,4 +554,4 @@ managers<span class="token punctuation">;</span> <span class="token comment">//
[</span><span class="token number">100</span><span class="token punctuation">,</span> <span class="token number">200</span><span class="token punctuation">],
(</span>a<span class="token punctuation">,</span> b<span class="token punctuation">,</span> c<span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">(</span>a <span class="token operator">!=</span> <span class="token keyword">null</span> <span class="token operator">?</span> a <span class="token punctuation">:</span> <span class="token string">'a'</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token punctuation">(</span>b <span class="token operator">!=</span> <span class="token keyword">null</span> <span class="token operator">?</span> b <span class="token punctuation">:</span> <span class="token string">'b'</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token punctuation">(</span>c <span class="token operator">!=</span> <span class="token keyword">null</span> <span class="token operator">?</span> c <span class="token punctuation">:</span> <span class="token string">'c'</span><span class="token punctuation">)
);</span> <span class="token comment">// [111, 222, '3bc']</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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docs/beginner.html
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@ -144,4 +144,4 @@
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div></div></div><div class="row"><div class="col-sm-12 col-md-10 col-lg-8 col-md-offset-1 col-lg-offset-2"><div class="card fluid"><h3 id="truncatestring.md" class="section double-padded">truncateString</h3><div class="section double-padded"><p>Truncates a string up to a specified length.</p><p>Determine if the string's <code>length</code> is greater than <code>num</code>. Return the string truncated to the desired length, with <code>'...'</code> appended to the end or the original string.</p><pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">truncateString</span> <span class="token operator">=</span> <span class="token punctuation">(</span>str<span class="token punctuation">,</span> num<span class="token punctuation">)</span> <span class="token operator">=></span>
str<span class="token punctuation">.</span>length <span class="token operator">></span> num <span class="token operator">?</span> str<span class="token punctuation">.</span><span class="token function">slice</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span> num <span class="token operator">></span> <span class="token number">3</span> <span class="token operator">?</span> num <span class="token operator">-</span> <span class="token number">3</span> <span class="token punctuation">:</span> num<span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token string">'...'</span> <span class="token punctuation">:</span> str<span class="token punctuation">;</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">truncateString</span><span class="token punctuation">(</span><span class="token string">'boomerang'</span><span class="token punctuation">,</span> <span class="token number">7</span><span class="token punctuation">);</span> <span class="token comment">// 'boom...'</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div></div></div></div><button class="scroll-to-top">&uarr;</button><br/><footer class="container"><div class="row"><div class="col-sm-12 col-md-10 col-lg-8 col-md-offset-1 col-lg-offset-2"><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></div></div></footer></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div></div></div></div><button class="scroll-to-top">&uarr;</button><br/><footer class="container"><div class="row"><div class="col-sm-12 col-md-10 col-lg-8 col-md-offset-1 col-lg-offset-2"><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></div></div></footer></body></html>

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@ -353,4 +353,4 @@ recorder<span class="token punctuation">.</span><span class="token function">sta
<span class="token punctuation">(</span>c <span class="token operator">^</span> <span class="token punctuation">(</span>crypto<span class="token punctuation">.</span><span class="token function">getRandomValues</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Uint8Array</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">))[</span><span class="token number">0</span><span class="token punctuation">]</span> <span class="token operator">&amp;</span> <span class="token punctuation">(</span><span class="token number">15</span> <span class="token operator">>></span> <span class="token punctuation">(</span>c <span class="token operator">/</span> <span class="token number">4</span><span class="token punctuation">)))).</span><span class="token function">toString</span><span class="token punctuation">(</span><span class="token number">16</span><span class="token punctuation">)
);</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">UUIDGeneratorBrowser</span><span class="token punctuation">();</span> <span class="token comment">// '7982fcfe-5721-4632-bede-6000885be57d'</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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};</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">tomorrow</span><span class="token punctuation">();</span> <span class="token comment">// 2017-12-27 (if current date is 2017-12-26)</span>
<span class="token function">tomorrow</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">);</span> <span class="token comment">// 2017-12-27T00:00:00 (if current date is 2017-12-26)</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -297,4 +297,4 @@ console<span class="token punctuation">.</span><span class="token function">log<
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token keyword">const</span> doubleEvenNumbers <span class="token operator">=</span> <span class="token function">when</span><span class="token punctuation">(</span>x <span class="token operator">=></span> x <span class="token operator">%</span> <span class="token number">2</span> <span class="token operator">===</span> <span class="token number">0</span><span class="token punctuation">,</span> x <span class="token operator">=></span> x <span class="token operator">*</span> <span class="token number">2</span><span class="token punctuation">);</span>
<span class="token function">doubleEvenNumbers</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">);</span> <span class="token comment">// 4</span>
<span class="token function">doubleEvenNumbers</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">);</span> <span class="token comment">// 1</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -277,4 +277,4 @@ own individual rating by supplying it as the third argument.
Math<span class="token punctuation">.</span><span class="token function">round</span><span class="token punctuation">(</span>Math<span class="token punctuation">.</span><span class="token function">max</span><span class="token punctuation">(</span>Math<span class="token punctuation">.</span><span class="token function">min</span><span class="token punctuation">(</span>num<span class="token punctuation">,</span> Number<span class="token punctuation">.</span><span class="token constant">MAX_SAFE_INTEGER</span><span class="token punctuation">),</span> Number<span class="token punctuation">.</span><span class="token constant">MIN_SAFE_INTEGER</span><span class="token punctuation">));</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">toSafeInteger</span><span class="token punctuation">(</span><span class="token string">'3.2'</span><span class="token punctuation">);</span> <span class="token comment">// 3</span>
<span class="token function">toSafeInteger</span><span class="token punctuation">(</span><span class="token number">Infinity</span><span class="token punctuation">);</span> <span class="token comment">// 9007199254740991</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -154,4 +154,4 @@ console<span class="token punctuation">.</span><span class="token function">log<
<span class="token punctuation">(</span>c <span class="token operator">^</span> <span class="token punctuation">(</span>crypto<span class="token punctuation">.</span><span class="token function">randomBytes</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)[</span><span class="token number">0</span><span class="token punctuation">]</span> <span class="token operator">&amp;</span> <span class="token punctuation">(</span><span class="token number">15</span> <span class="token operator">>></span> <span class="token punctuation">(</span>c <span class="token operator">/</span> <span class="token number">4</span><span class="token punctuation">)))).</span><span class="token function">toString</span><span class="token punctuation">(</span><span class="token number">16</span><span class="token punctuation">)
);</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">UUIDGeneratorNode</span><span class="token punctuation">();</span> <span class="token comment">// '79c7c136-60ee-40a2-beb2-856f1feabefc'</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -344,4 +344,4 @@ Foo<span class="token punctuation">.</span>prototype<span class="token punctuati
<span class="token keyword">return</span> acc<span class="token punctuation">;
}, {});</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">unflattenObject</span><span class="token punctuation">({</span> <span class="token string">'a.b.c'</span><span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span> d<span class="token punctuation">:</span> <span class="token number">1</span> <span class="token punctuation">});</span> <span class="token comment">// { a: { b: { c: 1 } }, d: 1 }</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -255,4 +255,4 @@
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid"><h3 id="words" class="section double-padded">words</h3><div class="section double-padded"><p>Converts a given string into an array of words.</p><p>Use <code>String.split()</code> with a supplied pattern (defaults to non-alpha as a regexp) to convert to an array of strings. Use <code>Array.filter()</code> to remove any empty strings. Omit the second argument to use the default regexp.</p><pre class="language-js"><span class="token keyword">const</span> words <span class="token operator">=</span> <span class="token punctuation">(</span>str<span class="token punctuation">,</span> pattern <span class="token operator">=</span> <span class="token regex">/[^a-zA-Z-]+/</span><span class="token punctuation">)</span> <span class="token operator">=></span> str<span class="token punctuation">.</span><span class="token function">split</span><span class="token punctuation">(</span>pattern<span class="token punctuation">).</span><span class="token function">filter</span><span class="token punctuation">(</span>Boolean<span class="token punctuation">);</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">words</span><span class="token punctuation">(</span><span class="token string">'I love javaScript!!'</span><span class="token punctuation">);</span> <span class="token comment">// ["I", "love", "javaScript"]</span>
<span class="token function">words</span><span class="token punctuation">(</span><span class="token string">'python, javaScript &amp; coffee'</span><span class="token punctuation">);</span> <span class="token comment">// ["python", "javaScript", "coffee"]</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -181,4 +181,4 @@
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">isValidJSON</span><span class="token punctuation">(</span><span class="token string">'{"name":"Adam","age":20}'</span><span class="token punctuation">);</span> <span class="token comment">// true</span>
<span class="token function">isValidJSON</span><span class="token punctuation">(</span><span class="token string">'{"name":"Adam",age:"20"}'</span><span class="token punctuation">);</span> <span class="token comment">// false</span>
<span class="token function">isValidJSON</span><span class="token punctuation">(</span><span class="token keyword">null</span><span class="token punctuation">);</span> <span class="token comment">// true</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>

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@ -272,4 +272,4 @@ Logs: {
<span class="token function">yesNo</span><span class="token punctuation">(</span><span class="token string">'yes'</span><span class="token punctuation">);</span> <span class="token comment">// true</span>
<span class="token function">yesNo</span><span class="token punctuation">(</span><span class="token string">'No'</span><span class="token punctuation">);</span> <span class="token comment">// false</span>
<span class="token function">yesNo</span><span class="token punctuation">(</span><span class="token string">'Foo'</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">);</span> <span class="token comment">// true</span>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>
</pre><button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><button class="scroll-to-top">&uarr;</button><footer><p style="display:inline-block"><strong>30 seconds of code</strong> is licensed under the <a href="https://github.com/Chalarangelo/30-seconds-of-code/blob/master/LICENSE">CC0-1.0</a> license.<br><img src="" style="vertical-align:text-bottom;padding-right:8px" width="20px" height="20px">Sponsored by <a href="https://www.digitalocean.com">DigitalOcean</a>.<br>Icons made by <a href="https://www.flaticon.com/authors/smashicons">Smashicons</a> from <a href="https://www.flaticon.com/">www.flaticon.com</a> are licensed under the <a href="http://creativecommons.org/licenses/by/3.0/">CC 3.0 BY</a> license.<br>Ribbon made by <a href="https://github.com/tholman/github-corners">Tim Holman</a> is licensed under the <a href="https://opensource.org/licenses/MIT">MIT</a> license.<br>Built with the <a href="https://minicss.org">mini.css framework</a>.</p></footer></main></div></body></html>