Checks if the given number is a power of 2.

const isPowerOfTwo = n => !!n &amp;&amp; (n &amp; (n - 1)) == 0;

isPowerOfTwo(0); // false
isPowerOfTwo(1); // true
isPowerOfTwo(8); // true

Checks if the given number is a power of <code class="notranslate">2</code>.
<ul>
<li>Use the bitwise binary AND operator (<code class="notranslate">&amp;</code>) to determine if <code class="notranslate">n</code> is a power of <code class="notranslate">2</code>.</li>
<li>Additionally, check that <code class="notranslate">n</code> is not falsy.</li>
</ul>

Number is power of two

Written by Angelos Chalaris

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