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StringIsDigit Does not work properly

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the reason is you using the == operator, which is dedicated to case-sensitive string comparison, for boolean and numeric comparison, not cool.

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"1" is a string, and 1 is a number, TRUE is boolean....

you should not compare a string with a number ! The result of a comparison is TRUE or FALSE

(1 = "1") is (should be) FALSE   //EDIT (but NOT in AutoIt because of datatype "variant"?! ) so (1="1") in AutoIt is TRUE

(1 = TRUE) is TRUE

Edited by AndyG

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okay :D 

problem is that in C++ or java single = operator assign value.

So that's why i was using double equal :D

i got it ty :D 

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More precisely, when you write:

If StringIsDigit($tmp) == True Then

the interpretor understands:

If '1' == 'True' Then

because == forces the conversion of its operands to strings and StringIsDigit returns the integer 0 or 1 (1 in your case), while the string 'True' stays by itself. Since the == comparison is over verbatim (case-insensitive) strings, it clearly fails.

The lazy, simple and robust way to code that condition is:

If StringIsDigit($tmp) Then
Edited by jchd
  • Like 2

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3 hours ago, jchd said:


The lazy, simple and robust way to code that condition is:

If StringIsDigit($tmp) Then


@Muhammad_Awais_Sharif  ...Use a single equals (=) for comarison, as well as assignment in AutoIt for cases like this...or just say "If X Then" (whenever X is true..."Then" will execute)

(...It took me a few minutes to wrap my head around the 'single equals comparison' as well, so you're in good company!) :)


Edited by bloopie
  • Like 1

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