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(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

(substr string start [length])

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language

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