IsNumber

[erebus]

I use the following code:

$no=1

Select
   Case Not IsNumber($no)
   MsgBox(0, "DEBUG", "$no is not a number")
   Exit
EndSelect

This works as expected. $no IS a number.

Now I alter the above code as:

$no = IniRead($ini, "Something", "Number", "NOTEXIST")

Select
   Case Not IsNumber($no)
   MsgBox(0, "DEBUG", "$no is not a number")
   MsgBox(0, "DEBUG", $no + 1)
   Exit
EndSelect

"Number" in $ini = 1. Now AutoIT does not recognize $no as a number, executes the first MsgBox to indicate the error, however the result of the second MsgBox is "2". Can you explain this?

If I'm doing something really stupid (headache rules) shoot me freely.

[Mr.Wizard]

And why are you using a Select when there's only one condition? Why not use an If?

[erebus]

@Larry: Why can't I find this function? (using the latest unstable)

@Mr.Wizard: Just posted a sort example, there are more conditions in my case (that's why the Select function was used).

Edit: Solved - used:

$no = IniRead($ini, "Something", "Number", "NOTEXIST")

Select
   Case Not Number($no)

Thanks anyway guys

Edited November 11, 2004 by erebus

[SlimShady]

I suggest you use StringIsDigit

$no = IniRead($ini, "Something", "Number", "NOTEXIST")

Select
  Case StringIsDigit($no)
     MsgBox(0, "DEBUG", "$no is not a number")
     MsgBox(0, "DEBUG", $no + 1)
     Exit
EndSelect

[Jos]

@Larry: Why can't I find this function? (using the latest unstable)

@Mr.Wizard: Just posted a sort example, there are more conditions in my case (that's why the Select function was used).

Edit: Solved - used:

$no = IniRead($ini, "Something", "Number", "NOTEXIST")

Select
   Case Not Number($no)

Thanks anyway guys

<{POST_SNAPBACK}>

Try this and see if that explains it:

$no = 1
if Not IsNumber($no) then MsgBox(0, "DEBUG 1 ", "$no is not a number")
$no = "1"
if Not IsNumber($no) then MsgBox(0, "DEBUG 2", "$no is not a number")

[erebus]

@JdeB: Thank you, I also got the same answer from Larry:

IniRead returns a string...

@SlimShady: Very good idea! Already updated, thank you. I think that is what Larry means. Edited November 11, 2004 by erebus