Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var a = Array(100000);
    var i;
    for (i=0; i<100000; i++) { a[i] = i; }
  };
</script>

Test runner

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

Java applet disabled.

var b = a.filter(function(c) { return c<0.5; }).map(function(c) { return c+1 });

var b=[];
for (i=0; i<a.length; i++) { if (a[i] < 0.5) { b.push(a[i]+1); } }

var b=[];
a.forEach(function(c) { if (c<0.5) { b.push(c+1) } })

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

Compare results of other browsers

0 comments