Does being good in jQuery imply being good in JavaScript?
<p>I'm pretty efficient in jQuery, having implementing it in several projects for my company. However, I found myself a little lost when reading stuff like <code>node.js</code>.</p>

<p>Do I have to go back to basics and learn the JavaScript language or should I just stick with jQuery?</p>

<p>One more thing I would like to ask: Does coding in plain JavaScript increase performance compared to coding with jQuery? For my own experience, coding heavy, complex combination of animation in jQuery always seems to take up large amount of the computer memory.</p>
