Why does webpack need an empty extension : <p>I'm trying to figure out why webpack requires this empty extension.</p>

<p>Inside <code>resolve.extensions</code> there's always this kind of configuration:</p>

<pre><code>extensions: ['', '.js', '.jsx']
</code></pre>

<p>Why can't it be just this:</p>

<pre><code>extensions: ['.js', '.jsx']
</code></pre>
