loop-types-ecmascript

JavaScript performance comparison

Test case created by Andreas Göbel

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var arr = [1,2,3,4,5];

};
</script>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
for loop cached
for(var i = 0, len = arr.length; i < len; i++) {
}
pending…
normal loop loop
for(var i = 0; i < arr.length; i++) {
}
pending…
rev while loop
var len = arr.length;
while( len-- ) {
}
pending…
for loop 2in1
for (var i=arr.length; i--;) {
}
pending…
for loop getting element
for (var i=0, each; each = arr[i]; i++) {
}
pending…

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL.

0 Comments