Is jQuery('.foo').find('.bar') equivalent to jQuery('.bar', jQuery('.foo'))?
<p>Using:</p>

<pre><code>var $a = $('.foo').find('.bar');

var $b = $('.bar', $('.foo'));
</code></pre>

<p>I know <code>$b</code> will have its context set to <code>$('.foo')</code>, while <code>$a</code>.  Aside from that, I believe the two objects are the same, correct?</p>

<p>Follow up Qs:</p>

<ol>
<li>Will the perf be the same as well since the search is rooted off of the same object effectively?</li>
<li>Does a more strict context improve perf in terms of core jquery operations at all? (I know it's intended for plugin usage.)</li>
</ol>

<p>Thanks!</p>
