Empty array

JavaScript performance comparison

Revision 141 of this test case created by joeytwiddle

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  window.base_arr = [];
  
  for (var i=0; i<12000; i++) {
    base_arr.push( {a: 1, b: "2"} );
  }

};
</script>

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
length
window.arr = base_arr.slice(0);

arr.length = 0;
pending…
splice
window.arr = base_arr.slice(0);

arr.splice(0, arr.length);
pending…
pop
window.arr = base_arr.slice(0);

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

while (arr.length > 0) {
  arr.shift();
}
pending…
new array
window.arr = base_arr.slice(0);

arr = [];
pending…

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Revisions

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