How to check if the variable (of type uint) has a value or not?

Hi all

I'm just trying to write an instruction conditional to check if my uint variable has a value or not.  I tried to check "null" and "undefined", but without any luck (see below)

private var _tempIndex:uint;

...

...

If (_tempIndex! = null) {}

code here

}

had an error with that one, then tried

If (_tempIndex! = undefined) {}

code here

}

had an error with that as well.

So, how can I check if a variable has been assigned a value or not? Any ideas? Thanks in advance!

Mike

A uint always has a value between 0 and 2 ^ 32-1 inclusive. It cannot store a value 'no' as undefined or null. If you declare a variable of type uint without assigning a value, it is given a default value of 0.

You need to maintain an indicator Boolean separate or to use a type of data larger such as number (which can store NaN), object (which can store NaN or null), or * (which can store a value, including NaN, null, and undefined).

Gordon Smith

Adobe Flex SDK team

Tags: Flex

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