Array Performance

JavaScript performance comparison

Revision 241 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var size = 103687
  var sparse = new Array(size)
  var dense = []
  var object = {}
  var target = 101010
  var targetString = String(target)
  var o = {name: "me!"}
  for (var i = 0; i < size; i++) {
    if (i == target) {
      dense[i] = o
      object[i] = o
    }
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Sparse Array Lookup
var dest = sparse[target]
pending…
Dense Array Lookup
var dest = dense[target]
pending…
Object by Numeric Key
var dest = object[target]
pending…
Object by String Key
var dest = object[targetString]
pending…

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Revisions

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