How do people name the $(this) when it's used within code?
<p>I have the following code:</p>

<pre><code>$('#detailData')
    .on('change', '.updatable', function () {
        var type = $(this).attr('id').split('_')[1];
        updateField(entity, $(this), type);
        return false;
    })
</code></pre>

<p>I would like to add to the code and use <code>$(this)</code> multiple times. To make it clear, I want to assign <code>this</code> to a variable. When I use jQuery I've seen people place a <code>$</code> before the variable name. Am I correct in saying the following is correct?</p>

<pre><code>var $abc = $('#abc');
</code></pre>

<p>If that's correct then how should I name <code>$(this)</code> which if I am understanding correctly points to a DOM variable. Also is there any difference between a DOM variable and what's returned with <code>$('#abc')</code>?</p>
