Q(uick)BASIC Function: LCASE$

LCASE$

A string processing function that returns a string expression with all letters in lower-case

Useful and cross-version information about the programming environments of QBasic and QuickBasic.

stringexpression$

Any string expression.

Test$ = "THE string"
PRINT Test$
PRINT LCASE$(Test$); " in lowercase"
PRINT UCASE$(Test$); " IN UPPERCASE"

The LCASE$ function takes a string variable, string constant, or string expression as its single argument.

LCASE$ works with both variable- and fixed-length strings.

LCASE$ and UCASE$ are helpful in string comparison operations where tests need to be case insensitive.

This example converts uppercase characters in a string to lowercase.

' Program to convert to lowercase.
CLS                ' Clear screen
READ Word$
PRINT LCASE$(Word$);
DATA "THIS IS THE STRING in lower case."

Sample Output:

this is the string in lower case.

Usage Notes

LCASE$ and UCASE$ are helpful in string-comparison operations that are not case sensitive.

This example uses the LCASE$ function to convert uppercase characters in a string to lowercase characters.

CLS                'Clear screen.
READ Word$
PRINT LCASE$(Word$);
DATA "THIS IS THE STRING in lower case."

Sample Output:

this is the string in lower case.