Is 'return' necessary in the last line of JS function? : <p>what's the best practice of finishing the JS function if it doesn't return anything?</p>

<pre><code>function (a) {if (a) {setTimeout()} return;}
</code></pre>

<p>In this case 'return' is unnecessary but I leave it for readability purposes. I also tried to google if this is a way to micro-optimize JS but wasn't able to find anything.</p>
