Array Performance

JavaScript performance comparison

Revision 244 of this test case created by

Preparation code

<script>
  Benchmark.prototype.setup = function() {
    var a = [];
    var o = {};

for (var i = 0; i < 40000; i++) {
  a.push({ id: i, name: 'name'+i });
  o[i] = { id: i, name: 'name'+i };
}

  };
</script>
    

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Manual Array Lookup
var id = 29938;
for (var i = 0; i < a.length; i++) {
  if (a[i].id == id) {result = a[i]; break; }
}
pending…
Holey Array by Index
var id = 29938;
var result = a[id];
pending…
Object by Key
var id = '29938';
var result = o[id];
pending…

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