Empty array

JavaScript performance comparison

Revision 222 of this test case created by Souvik Kolay

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var sourceArray = [];
  
  for (i = 0; i < 100000; i++)
    sourceArray.push({
      a: 1,
      b: "2"
    });

};
</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
pop
var arr = sourceArray.slice();

while (arr.length > 0) {
  arr.pop();
}
pending…
shift
var arr = sourceArray.slice();

while (arr.length > 0) {
  arr.shift();
}
pending…
length
var arr = sourceArray.slice();

arr.length = 0;
pending…
splice
var arr = sourceArray.slice();

arr.splice(0, arr.length);
pending…
Initialize
var arr = sourceArray.slice();

arr = [];
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