How do you check for an empty string in JavaScript?

I saw this thread, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for ?

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on : Tue, Sep 30, 2008 Views : 1895607

Accepted Answer

If you just want to check whether there's any value, you can do

if (strValue) 

//do something 

If you need to check specifically for an empty string over null, I would think checking against is your best bet, using the === operator (so that you know that it is, in fact, a string you're comparing against).

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on : Tue, Sep 30, 2008

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