getElementById VS jQuery('#id') (v148)

Revision 148 of this benchmark created on

Preparation HTML

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js">
</script>
<p id="foo">
  Test
</p>
<p id="bar">
  bars</p>

Test runner

Ready to run.

Testing in
TestOps/sec
getElementById
for (var i = 0; i < 10; i += 1) {
  $(document.getElementById('foo'));
}
ready
jQuery Selector
for (var i = 0; i < 10; i += 1) {
  $('#foo');
}
ready
Custom Method
function _(id) {
  return jQuery(document.getElementById(id));
}
for (var i = 0; i < 10; i += 1) {
  _('foo');
}
ready
$ Custom Method
function _(id) {
  return $(document.getElementById(id));
}
for (var i = 0; i < 10; i += 1) {
  _('foo');
}
ready
jQuery Window Object
for (var i = 0; i < 10; i += 1) {
  $('#foo');
}
ready
realgetelementbyid
for (var i = 0; i < 10; i += 1) {
  document.getElementById('foo');
}
ready
typeof
for (var i = 0; i < 10; i += 1) {
  if (typeof(document.getElementById('foo')) === "undefined") {}
}
ready
realgetelementbyid cache
var getId = document.getElementById('foo');
for (var i = 0; i < 10; i += 1) {
  getId;
}
ready
realgetelementbyid cache ++
var getId = document.getElementById('foo');
for (var i = 0; i < 10; i++) {
  getId;
}
ready

Revisions

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