this $(this)

JavaScript performance comparison

Test case created

Info

this?

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 
<script>
Benchmark.prototype.setup = function() {
    < div class = "aa" > < /div>
    <div class="aa"></div > < div class = "aa" > < /div>
    <div class="aa"></div > < div class = "aa" > < /div>
    <div class="aa"></div > < div class = "aa" > < /div>
    <div class="aa"></div >
};

Benchmark.prototype.teardown = function() {
    < div class = "aa" > < /div>
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
a
$('.aa').click(function() {
  $(this).css('border', '10px solid red');
});
pending…
b
$('.aa').click(function() {
  this.style.border = '10px solid blue'
});
pending…

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