significance of multiple operators in one variable declaration
<p>In <a href="http://stackoverflow.com/a/4433812/1252748">this answer</a> which tests whether or not a page has been cached, I see this variable declaration. </p>

<pre><code>var isCached = currentCookie !== null;
</code></pre>

<p>what is the significance of the <code>=</code> and <code>!==</code> operators together in one statement?</p>

<p>Apologies if it's a duplicate question (which I'm guessing it is), but since it's mostly special characters, it's sort of difficult to google.</p>

<p>Thanks!</p>
