Browser Diet - jQuery.each vs. for loop

JavaScript performance comparison

Revision 36 of this test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script>
  var a = $('*').get(),
      e;
</script>
 

Preparation code output

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Testing in unknown unknown
Test Ops/sec
jQuery.each
$.each(a, function() {
  e = this;
})
pending…
for loop
for (var i = 0, len = a.length; i < len; i++) {
  e = a[i];
}
pending…
for without caching
for (var i = 0; i < a.length; i++) {
  e = a[i];
}
pending…
alternative for loop
for (var i in a) {
  e = a[i];
}
pending…
reverse for
for (var i = a.length; i--;) {
  e = a[i];
}
pending…
while reverse
var i = a.length;
while (i) {
  e = a[--i]
}
pending…
forEach
a.forEach(function() {
  e = this;
})
pending…

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