Object.create() vs. constructor vs. object literal

JavaScript performance comparison

Revision 122 of this test case created

Preparation code

<script>
  Obj = function() {
   if (this.constructor !== Obj) {
     return new Obj();
   }
   this.p = 1;
  }
 
  propObj = {
   p: {
    value: 1
   }
  };
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
Object.create() using in-place property object
o = Object.create(Object.prototype, {
  p: {
    value: 1
  }
});
pending…
Object.create() using pre-defined property object
o = Object.create(Object.prototype, propObj);
pending…
Constructor function
o = new Obj();
pending…
Literal
o = {
  p: 1
}
pending…
Without new
o = Obj();
pending…
No Prop Object
o = Object.create(Object.prototype);
pending…

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