detecting non-defined variables

[duckwilliamson]

how do you detect if a variable is undefined??

i haven't defined variable 'a'
can i make this so:

? a == -something- : do this

[toadlife]

Here is one way...

Code: [Select]

?format["%1",_variabletocheck] == " scalar bool array string 0xfcffffef": hint "This variable doesn't exist!"
Edit: If "_Variabletocheck" is undefined, the hint will display. You can take this line and check any variable just by replacing "_variabletocheck".

[duckwilliamson]

thanks toadlife ...

i knew it was something simple and you gave me a quick easy answer ...

thanks a lot!