jQuery .find() vs. context selector vs non-context selector

JavaScript performance comparison

Revision 24 of this test case created by

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<p><ins></ins></p>

<div>
	<p>A test</p>
	<p><ins></ins></p>
	<p>This is text</p>
</div>

<p><ins></ins></p>

<div>
	<p>A test</p>
	<p><ins></ins></p>
	<p>This is text</p>
</div>
 

<p><ins></ins></p>

<div>
	<p>A test</p>
	<p><ins></ins></p>
	<p>This is text</p>
	<div>
		<p>A test</p>
		<p><ins></ins></p>
		<p>This is text</p>
		<div>
			<p>A test</p>
			<p><ins></ins></p>
			<p>This is text</p>
			<div>
				<p>A test</p>
				<p><ins></ins></p>
				<p>This is text</p>
				<div>
					<p>A test</p>
					<p><ins></ins></p>
					<p>This is text</p>
					<div>
						<p>A test</p>
						<p><ins></ins></p>
						<p>This is text</p>
							<div>
								<p>A test</p>
								<p><ins></ins></p>
								<p>This is text</p>
							</div>
					</div>
				</div>
			</div>
		</div>
	</div>
</div>
		
<div>
	<p>A test</p>
	<div>
		<div>
			<div>
				<p><ins></ins></p>
			</div>
		</div>
	</div>
	<p>This is text</p>
</div>
      
<script>
Benchmark.prototype.setup = function() {
  var $article = $('div');
  var article = $article[0];

};
</script>

Preparation code output

<p><ins></ins></p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> </div> <p><ins></ins></p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> </div> <p><ins></ins></p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> <div> <p>A test</p> <p><ins></ins></p> <p>This is text</p> </div> </div> </div> </div> </div> </div> </div> <div> <p>A test</p> <div> <div> <div> <p><ins></ins></p> </div> </div> </div> <p>This is text</p> </div>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
find method (node context)
var has = $(article).find('ins').length > 0 ? true : false;
pending…
find method (jquery context)
var has = $($article).find('ins').length > 0 ? true : false;
pending…
context node
var has = $('ins', article).length > 0 ? true : false;
pending…
context jQuery
var has = $('ins', $article).length > 0 ? true : false;
pending…
context jQuery[0]
var has = $('ins', $article[0]).length > 0 ? true : false;
pending…
cascade
var has = $('div ins').length > 0 ? true : false;
pending…
context (no cached)
var has = $('ins', 'div').length > 0 ? true : false;
pending…
find method without >
var has = !!$(article).find('ins').length;
pending…

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