IsEmpty

IsEmpty — Check if string value is empty.

IsEmpty StringValue

Return Value

1	String is empty.
0	String is not empty.

Arguments

StringValue

String value to check.

More Info

Equivalent to string is equal but if {[IsEmpty $String]} looks a bit better than if {[string is equal $String ""]} and is less tedious to type out.

For information regarding exceptions / errors, see here.

% set EmptyString ""
% IsEmpty $EmptyString
1

% set MyString 123
123
% IsEmpty $MyString
0