Instantiating a JavaScript object by calling prototype.constructor.apply — OZONE Asylum, home of the Mad Scientists

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Instantiating a JavaScript object by calling prototype.constructor.apply

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Your Text: Insert Slimies » Insert UBB Code » Close Last Tag \| All Tags UBB Help	Very interesting topic. I've been struggling to wrap my head around JS OOP for some time now - It seems pretty wonky compared to other high level languages. Anyway, I've been searching google and experimenting for about the last hour trying to find something. The best I could come up with is that I think prototype.constructor is not the right thing. There is a method called constructor that does return some weird garbage that appears to be related to initialization, however I don't believe that it is the actual constructor. I think it's too late after you've called new ObjectName() because the constructor has already been invoked: you can't change it now. So I don't have a direct answer for you because I don't yet understand it fully, but I can suggest this different angle of attack: try changing the definition of the Date object BEFORE instantiating it. Something like this: [code] // The problem here is that constructor seems to not be the correct method // to override the actual class constructor - so what is the right way? Date.prototype.constructor = function(myargs) { // This calls the original constructor with myargs as an array, just like you requested Date.apply(this, myargs); } var comps = [ 2008, 10, 8, 00, 16, 34, 254 ]; // NOW we try to instantiate a Date object after we've altered the behavior through the prototype... var d = new Date(comps); var year = d.getYear(); var month = d.getMonth(); var day = d.getDate(); [/code] To be clear: the above does not work, but I think the approach is worth looking at... Regards, - SK Loading...
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