Prototype vs Module pattern performance

JavaScript performance comparison

Revision 43 of this test case created by Grant Kiely

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}
    }
    
    var Klass3 = (function(){
      var FooFunction = function() {
        log('foo');
      };
      var BarFunction = function() {
        log('bar');
      };
      return {foo: FooFunction, bar:BarFunction};
    })();
  };
</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
 
var i = 1000,
    objs = [];
while (i--) {
  var o = Klass2()
  objs.push(Klass2());
  o.bar;
  o.foo;
}
 pending…
Module pattern with cached functions
 
var i = 1000,
    objs = [];
while (i--) {
  objs.push(Klass3);
  o.bar;
  o.foo;
}
 pending…

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