CodigoEjemplo4Rendimiento.js

  // Prototypal pattern
  Klass1 = function () {}
  Klass1.prototype.foo = function () {
      log('foo');
  }
  Klass1.prototype.bar = function () {
      log('bar');
  }

  // Module pattern
  Klass2 = function () {
      var foo = function () {
          log('foo');
      },
      bar = function () {
          log('bar');
      };

      return {
          foo: foo,
          bar: bar
      }
  }


  // Module pattern with cached functions
  var FooFunction = function () {
      log('foo');
  };
  var BarFunction = function () {
      log('bar');
  };

  Klass3 = function () {
      return {
          foo: FooFunction,
          bar: BarFunction
      }
  }


  // Iteration tests

  // Prototypal
  var i = 1000,
      objs = [];
  while (i--) {
      var o = new Klass1()
      objs.push(new Klass1());
      o.bar;
      o.foo;
  }

  // Module pattern
  var i = 1000,
      objs = [];
  while (i--) {
      var o = Klass2()
      objs.push(Klass2());
      o.bar;
      o.foo;
  }

  // Module pattern with cached functions
  var i = 1000,
      objs = [];
  while (i--) {
      var o = Klass3()
      objs.push(Klass3());
      o.bar;
      o.foo;
  }
// See the test for full details