LEN(), LENS() |
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The LEN() function returns the length of a string. The LENS() function is similar to LEN() but operates on successive elements of a dynamic array, returning a similarly structured dynamic array of results.
Format
LEN(string)
where
The LEN() function returns the length of string including any trailing spaces.
Example
LOOP DISPLAY "Enter account number: " INPUT ACCOUNT.NO WHILE LEN(ACCOUNT.NO) # 6 PRINTERR "Invalid account number" REPEAT
This program fragment prompts for and inputs an account number. If it is not six characters in length, an error is displayed and the prompt is repeated. |