jQuery each vs JS forEach

JavaScript performance comparison

Revision 11 of this test case created by

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script>
  // Setup collection
  var collection = [];
  for (var i = 0; i < 20000; i++) {
    collection.push({
      index: i,
      data: 'Index element ' + i
    });
  }
</script>
    

Preparation code output

<script> // Setup collection var collection = []; for (var i = 0; i < 20000; i++) { collection.push({ index: i, data: 'Index element ' + i }); } </script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
JS forEach()
collection.forEach(function(element, index) {
    console.log(index,"SSSSSSSSSSSSSSSSSSSSSSSSSS");
});
pending…
jQuery
$.each(collection, function(index, element) {
     console.log( index,"SSSSSSSSSSSSSSSSSSSSSSSSSS");
});
pending…
JS for(var x in collection)
for (var index in collection) {
  if (collection.hasOwnProperty(index)) 
    console.log(index,"SSSSSSSSSSSSSSSSSSSSSSSSSS");
  }
pending…
Js for
for (var i=0,len=collection.length; i<len ; i++) {
    console.log(i,"SSSSSSSSSSSSSSSSSSSSSSSSSS");
  }
  
pending…

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Revisions

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