
RTRIM$ can be used to remove all space characters from the end of a string. RTRIM$ needs a single argument that is the source string, and generates a new string where all trailing spaces are stripped off.
This example demonstrates the effect of RTRIM$:
outmode -2 let a$ = "hello " let b$ = "world " let c$ = rtrim$(a$) + rtrim$(b$) + "!" print c$
Only spaces (ASCII value 0x20) are removed. Other white space characters are not. See also LTRIM$.