Run results for: Factory vs Class

Test name	Executions per second
✓ Factory (init outside of loop)	2,648,438 Ops/sec
Factory	57,194 Ops/sec
Class (init outside of loop)	22,249 Ops/sec
Class	15,081 Ops/sec

Factory

'use strict';
function getInstance(param1) {
    var var1 = 'hello';
    var m1 = function (p) {
        return 'testing: ' + p;
    };
    return {
        getParam1: function () {
            return param1;
        },
        var1: var1,
        getResult: function (p) {
            return param1 + ', ' + var1 + ', ' + m1(p);
        }
    };
}

var a;
var i = 0;
var t1, t2;

for (i; i < 1000; i++) {
  a = getInstance('A - ABC');
  t1 = a.getParam1() + a.var1;
  t2 = t1 + a.getResult('result A');
}

Class

'use strict';

var TestClass = function () {
    function TestClass(param1) {
        this.param1 = param1;
        this.var1 = 'hello';
    }
    TestClass.prototype.m1 = function (p) {
        return 'testing: ' + p;
    };
    ;
    TestClass.prototype.getParam1 = function () {
        return this.param1;
    };
    TestClass.prototype.getResult = function (p) {
        return this.param1 + ', ' + this.var1 + ', ' + this.m1(p);
    };
    return TestClass;
}();

var b;
var i = 0;
var t1, t2;

for (i; i < 1000; i++) {
  b = new TestClass('B - ABC');
  t1 = b.getParam1() + b.var1;
  t2 = t1 + b.getResult('result B');
}

Factory (init outside of loop)

'use strict';
function getInstance(param1) {
    var var1 = 'hello';
    var m1 = function (p) {
        return 'testing: ' + p;
    };
    return {
        getParam1: function () {
            return param1;
        },
        var1: var1,
        getResult: function (p) {
            return param1 + ', ' + var1 + ', ' + m1(p);
        }
    };
}

var a;
var i = 0;
var t1, t2;

a = getInstance('A - ABC');

for (i; i < 1000; i++) {  
  t1 = a.getParam1() + a.var1;
  t2 = t1 + a.getResult('result A');
}

Class (init outside of loop)

'use strict';

var TestClass = function () {
    function TestClass(param1) {
        this.param1 = param1;
        this.var1 = 'hello';
    }
    TestClass.prototype.m1 = function (p) {
        return 'testing: ' + p;
    };
    ;
    TestClass.prototype.getParam1 = function () {
        return this.param1;
    };
    TestClass.prototype.getResult = function (p) {
        return this.param1 + ', ' + this.var1 + ', ' + this.m1(p);
    };
    return TestClass;
}();

var b;
var i = 0;
var t1, t2;

b = new TestClass('B - ABC');

for (i; i < 1000; i++) {
  t1 = b.getParam1() + b.var1;
  t2 = t1 + b.getResult('result B');
}