Why do I have to pass the letter 'e' into this jQuery function?
<p>I know that E is short for 'event,' but it's still not clear to me why I need to use it? I tried passing other letters through the function and it didn't seem to work. Are there other situations where I need to pass a specific letter into a function? </p>

<pre><code>$("#myThing").click(function (e) {
   var hit = $(e.target);
   hit.css('color','blue');
});
</code></pre>

<p>This does the same thing:</p>

<pre><code>$("#myThing").click(function () {
   $(this).css('color','blue');
});
</code></pre>

<p>When should I use $(this) versus 'e'?</p>

<p>Thank you!</p>
