gistfile1.js

/// Run this code in any browser

function RegularConstructor () {
    
}

RegularConstructor.prototype = {
    meth1: function(){},
    meth2: function(){},
    meth3: function(){},
    meth4: function(){},
    meth5: function(){},
    meth6: function(){},
    meth7: function(){},
    meth8: function(){},
    meth9: function(){}
};

function crockfordsIdea () {
    var inst = {
        meth1: function(){},
        meth2: function(){},
        meth3: function(){},
        meth4: function(){},
        meth5: function(){},
        meth6: function(){},
        meth7: function(){},
        meth8: function(){},
        meth9: function(){}
    };
    return inst;
}


var n = +new Date;

for (var i = 0; i < 10000; ++i ) {
    crockfordsIdea();
}

alert('crockfordsIdea :' + (+new Date - n) + 'ms');

var n = +new Date;

for (var i = 0; i < 10000; ++i) {
    new RegularConstructor();
}

alert('RegularConstructor :' + (+new Date - n) + 'ms');