Prototype vs Module pattern performance

JavaScript performance comparison

Revision 3 of this test case created

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Test Ops/sec
Prototypal
Klass = function() {
}
Klass.prototype.foo = function() {
    alert('foo');
}
Klass.prototype.bar = function() {
    alert('bar');
}

var i = 1000, objs = [];
while(i--) {
    objs.push(new Klass());
}
pending…
Module pattern
Klass = function() {
    this.foo = function() {
        alert('foo');
    };

    this.bar = function() {
        alert('bar');
    };
}

var i = 1000, objs = [];
while(i--) {
    objs.push(new Klass());
}
pending…

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