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

JavaScript performance comparison

Revision 11 of this test case created by Gavin Huang

Preparation code

<script>
  Obj = function() {
   this.p = 1;
  };
  
  propObj = {
   p: {
    value: 1
   }
  };
  
  protoObj = {p: 1};
  
  function object(o) {
      function F() {}
      F.prototype = o;
      return new F();
  }
</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…
Object.create() using in-place prototype object
 
o = Object.create({p: 1});
 pending…
Object.create() using pre-defined prototype object
 
o = Object.create(protoObj);
 pending…
Crockford method using in-place prototype object
 
o = object({p: 1});
 pending…
Crockford method using pre-defined prototype object
 
o = object(protoObj);
 pending…

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Revisions

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