Prototype vs Module pattern performance

JavaScript performance comparison

Revision 37 of this test case created by lenzhang

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    Klass1 = function() {}
    Klass1.prototype.foo = function() {
      log('foo');
    }
    Klass1.prototype.bar = function() {
      log('bar');
    }
   
    Klass2 = function() {
      var foo = function() {
          log('foo');
          },
          bar = function() {
          log('bar');
          };
   
      return {
        foo: foo,
        bar: bar
      }
    }
   
    Klass3 = function() {
    var FooFunction = function() {
        log('foo');
        };
    var BarFunction = function() {
        log('bar');
        };
   
      return function(){
      return {
        foo: FooFunction,
        bar: BarFunction
      }
      }
    }()
   
    Klass4 = function() {
      this.foo = function() {
        log('foo');
      };
      this.bar = function() {
        log('bar');
      };
    }
};
</script>

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Testing in unknown unknown
Test Ops/sec
Prototypal
var i = 1000,
    objs = [];
while (i--) {
  var o = new Klass1()
  objs.push(new Klass1());
  o.bar;
  o.foo;
}
pending…
Module pattern
// async test
var i = 1000,
    objs = [];
while (i--) {
  var o = new Klass2()
  objs.push(new Klass2());
  o.bar;
  o.foo;
}
pending…
Module pattern with cached functions
var i = 1000,
    objs = [];
while (i--) {
  var o = Klass3()
  objs.push(Klass3());
  o.bar;
  o.foo;
}
pending…
This
var i = 1000,
    objs = [];
while (i--) {
  var o = new Klass4()
  objs.push(new Klass4());
  o.bar;
  o.foo;
}
pending…

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