====== LEN ======

The ''LEN()'' function counts the number of characters in a string.

===== Function header =====

  DECLARE FUNCTION LEN AS BYTE (arg$ AS STRING) SHARED STATIC INLINE

If the argument is a variable, the function will return the actual length of the string, rather than the length to which the variable was defined.

===== Examples =====

  PRINT LEN("") : REM outputs 0
  PRINT LEN("hello") : REM outputs 5
  DIM a$ AS STRING * 16
  a$ = "world"
  PRINT LEN(a$) : REM outputs 5 (the actual length of the string)