null

Syntax: %null(s)

return true if s is the null string.

Example:

#VAR a {}

#VAR b { }

#UNVAR c

#SHOW a:%null(@a) b:%null(@b) c:%null(@c)

displays:

a:1 b:0 c:1

Note: with Prefs/General/Command Parser/Null var references disabled, the above example displays:

a:1 b:0 c:0