Empty string: Difference between revisions
Added XLISP
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if Len(s) > 0 then Debug.Print "not empty."
</lang>
=={{header|XLISP}}==
<code>STRING-NULL?</code> returns true if its argument is a string of length zero. In a REPL:
<lang scheme>[1] (define my-empty-string "") ;; assign an empty string to a variable
MY-EMPTY-STRING
[2] (string-null? my-empty-string)
#T
[3] (string-null? "A non-empty string")
()</lang>
=={{header|XPL0}}==
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