title: variables in jQuery vs Javascript
body: <p>So in jQuery you have <code>$variable</code> and in Javascript you have <code>variable</code> without the <code>$</code></p>
  
  <p>Why do you use the <code>$</code> if you can just simply declare something as <code>var variable</code>? Why do you need to have jQuery <code>$variables</code> at all?</p>