check if variable exists?

[wrybread]

I'm wondering if there's a way to check whether a variable exists?

I'm trying to test whether command line argument 2 ($CmdLine[2]) exists. If not, assign it a default value.

I suppose I could use StringLeft to get the string length, but I'm hoping there's a better way.

[seandisanti]

I'm wondering if there's a way to check whether a variable exists?

I'm trying to test whether command line argument 2 ($CmdLine[2]) exists. If not, assign it a default value.

I suppose I could use StringLeft to get the string length, but I'm hoping there's a better way.

<{POST_SNAPBACK}>

$CmdLine[0] contains the number of elements, or the number of passed arguments. $CmdLine[2] can't exist if [0] < 2

[wrybread]

$CmdLine[0] contains the number of elements, or the number of passed arguments.  $CmdLine[2] can't exist if [0] < 2

<{POST_SNAPBACK}>

Thank you, very elegant.

[seandisanti]

Thank you, very elegant.

<{POST_SNAPBACK}>

glad i could help