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Possible Duplicate:
Best way to check for “undefined” in JavaScript?

I want to make an if statement that if the value is not defined then let it go through.

I tried

if (something != "undefined")

and 

if (something !== "undefined")

However it seems to go into the if statement no matter what. If it is undefined it goes through. If it is defined it goes through. Am I doing something wrong?

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chobo2
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    A more complete answer is here: http://stackoverflow.com/questions/3390396/best-way-to-check-for-undefined-in-javascript/3390426#3390426 – halfbit Nov 02 '10 at 22:11

0 Answers0