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Merge pull request #242 from fejes713/master

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Add countVowels
This commit is contained in:
Angelos Chalaris
2017-12-19 12:34:32 +02:00
committed by GitHub
parent ce2813168e e318dab354
commit 89daaa9270
5 changed files with 39 additions and 2 deletions
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docs/index.html
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@ -135,6 +135,7 @@
</h3><a class="sublink-1" href="#anagrams">anagrams</a>
<a class="sublink-1" href="#capitalize">capitalize</a>
<a class="sublink-1" href="#capitalizeeveryword">capitalizeEveryWord</a>
<a class="sublink-1" href="#countvowels">countVowels</a>
<a class="sublink-1" href="#escaperegexp">escapeRegExp</a>
<a class="sublink-1" href="#fromcamelcase">fromCamelCase</a>
<a class="sublink-1" href="#reversestring">reverseString</a>
@ -886,6 +887,14 @@ Omit the <code>lowerRest</code> parameter to keep the rest of the string intact,
<pre><code class="language-js">const capitalizeEveryWord = str =&gt; str.replace(/\b[a-z]/g, char =&gt; char.toUpperCase());
// capitalizeEveryWord('hello world!') -&gt; 'Hello World!'
</code></pre>
</div></div><br/><div class="card fluid"><div class="section double-padded"><h3 id="countvowels">countVowels</h3></div><div class="section double-padded">
<p>Retuns <code>number</code> of vowels in provided string.</p>
<p>Use a regular expression to count number of vowels <code>(A, E, I, O, U)</code> in a <code>string</code>.</p>
<pre><code class="language-js">const countVowels = str =&gt;
return (str.match(/[aeiou]/ig) || []).length;
// countVowels('foobar') -&gt; 3
// countVowels('gym') -&gt; 0
</code></pre>
</div></div><br/><div class="card fluid"><div class="section double-padded"><h3 id="escaperegexp">escapeRegExp</h3></div><div class="section double-padded">
<p>Escapes a string to use in a regular expression.</p>
<p>Use <code>replace()</code> to escape special characters.</p>