(strlen)

(subst)

(strlen [string1] [string2] ...)

Determine how many characters are in a string.

This function counts the number of characters in a string, or series of strings. It returns the amount as an integer. If an empty string exists or no string is provided, the value is zero.

Examples

Code	Returns
(strlen "How many?")	9
(strlen "one" "two" "three")	11
(strlen "")	0
(strlen)	0

Tell me about...

(substr string start [length])

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language