translate3d vs translate XY vs css left/top

JavaScript performance comparison

Revision 73 of this test case created by nomiadcode

Preparation code

<div id="elem" style="position: absolute; background:#ccc; width:10px; height:10px; transform:translate3d(0px,0px,0px); -webkit-backface-visibility:hidden;"></div>
<script>
  var elem = document.getElementById("elem");
  var style = elem.style;
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
translate3d
var rnd = Math.random();
x = 10 * rnd;
y = 10 * rnd;
var transform = 'translate3d(' + x + 'px, ' + y + 'px, 0px)';
if (style.WebkitTransform) {
  style.WebkitTransform = transform;
} else if (style.MozTransform) {
  style.MozTransform = transform;
} else {
  style.OTransform = transform;
}
pending…
translateX/Y
var rnd = Math.random();
x = 10 * rnd;
y = 10 * rnd;
var transform = 'translateX(' + x + 'px) translateY(' + y + 'px)';
style.MozTransform = transform;
style.WebkitTransform = transform;
style.OTransform = transform
pending…
css left/top
var rnd = Math.random();
x = 10 * rnd;
y = 10 * rnd;
style.left = x + 'px';
style.top = y + 'px';
pending…

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