jdborg jdborg - 1 year ago 162
Javascript Question

JavaScript find array index with value

Say I've got this

imageList = [100,200,300,400,500];

Which gives me

[0]100 [1]200

Is there any way in javascript to return the index with the value?

I.e. I want the index for 200, I get returned 1.

Hope I've explained it well enough.

Answer Source

you can use indexOf:

var imageList = [100,200,300,400,500];
var index = imageList.indexOf(200); // 1

you will get -1 if it cant find a value in the array.

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