Comments

From REALbasicWiki

Comments are marked by one of the symbols ', //, REM. All text following a comment symbol to the end of a line is ignored by the compiler. REALbasic has no multiline comment markers. You can, however, select code in the IDE and comment or uncomment entire lines.

REM an example of a useless comment
dim N as Integer = 6 //Initialize N

'This is also a comment