Array / Loop Question

[LurchMan]

Hey Everyone -

In one part of this script I'm writing it finds string matches in an array, then goes through and deletes them according to the index array.

I have one section setup so that if the index array is empty (meaning no matches found) then it exits the loop.

I'm checking to see if the first element is empty like this:

If $aIndex[0] = "" Then ExitLoop

The problem is that if $aIndex[0] = 0 then it exits the loop, is this the expected result by using that? I have also tried checking to see if it is not an array without any luck.

Please let me know if you would like more explination.

Thanks for any help in advance!

Lurch

[memoryoverflow]

Hard to tell what you're trying with this small piece, but...

Why don't you simply test If Not $aIndex[0] ?

O well - now I see what you're trying:

perhaps If 'x' & $aIndex[0] = 'x' ... ?

Edited October 7, 2009 by memoryoverflow

[LurchMan]

O well - now I see what you're trying:

perhaps If 'x' & $aIndex[0] = 'x' ... ?

Can you explain on that a little further?

[memoryoverflow]

Like your approach, it may not work for you, anyway, if you want to test for the existence of $aIndex[0].

In that case, you'd have to test UBound($aIndex).

But all that's rather guessing as long as you don't post a bigger snippet, showing clearer what you want to do.

If you're sure that the element exists, then concatenating it with a string makes sure it's interpretated as a string (and not as number 0) a 0 in the variable would lead to test 'x' vs 'x0', which is ovbiously false, otherwise you compare the number 0 (wich is false) vs string "" (which is also false) and get If false=false, which is true - there's a typo in my example, brackets missing.

Edited October 7, 2009 by memoryoverflow

[LurchMan]

You''re awesome man, I never thought of doing it that way but it works perfect everytime now.