javascript constructor with arguments

By Eldar Djafarov | Published: August 16, 2009

There was an interesting question on stackoverflow recently. Nobody had right answer. Now after few days i got it! It is really a peace of JS art.
The question was if it is possible to call constructor like this:

someClass(arg1,arg2,...,argN){
.... //implementation
}

having just an Array of arguments [arg1,arg2,...,argN]. First thought was just to use apply. Next was: how can you use apply on a constructor? But it seems you really can:)

var args=[arg1,arg2,...,argN];
var inst={};// this will be instance of our class
someClass.apply(inst,args);// magic here

You see from this point of view javascript constructor is just a method(function) applied to object cloned from its prototype.

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