Each vs. No Each

JavaScript performance comparison

Test case created

Preparation code

<div>
  <div class="parent">
    <div>
    </div>
  </div>
</div>
<div>
  <div class="parent">
    <div>
    </div>
  </div>
</div>
<div>
  <div class="parent">
    <div>
    </div>
  </div>
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>

Preparation code output

Test runner

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Java applet disabled.

Testing in unknown unknown
Test Ops/sec
Each
$(document).ready(function() {
  $('.parent > div').each(function() {
    $(this).parent().after(this);
  });
});
pending…
No Each
$(document).ready(function() {
  $('.parent').after(function() {
    return $('div', this);
  });
});
pending…

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