undefined value mean in javascript

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undefined value mean in javascript
1 Answer(s) 2 years and 6 months ago
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What does undefined value mean in javascript?

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November 12, 2010 at 1:19 PM

There can be multiple reasons of having undefined values

Object does not exist. Like you create an object of a control which does not exists in your page and when you access it, it is undefined.
No value is assigned to the object.
If you are trying to access a property which does not exists for the object.

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