Question

94

Javascript TypeError: can't convert undefined to object

rated 0 times [ 95] [ 1] / answers: 1 / hits: 34715 / 11 Years ago, mon, august 12, 2013, 12:00:00

var horizont, vertikal = new Array ()



for (var i=0; i < 9; i++) 

{

horizont[i] = new Array ();

vertikal[i] = new Array ()

}

That's what the console told me:

TypeError: can't convert undefined to object

horizont[i] = new Array ();

(if I would erase it from the code he says the same with vertikal )

except from some other empty strings getiing born it's the beginning of my code...
where is the mistake?
Is it so ovious that I don't see it?

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ibrahimr

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3 Years ago

answered 11 Years ago tobyl · Accepted Answer

The error is because you did not define horizont as an Array. You are using a comma to separate your variable so it is undefined. It does not use the new Array() from vertikal.

If you take your code

var horizont, vertikal = new Array ()

And write it out to use multiple variable, the error would pop out.

var horizont;

var vertikal = new Array();

You need to specify both as Arrays.

var horizont = [], 

    vertikal = [];