REM any-text

Adds a remark (comment) to your program. The interpreter ignores the rest of the line after REM.

Remarks: You can use the ' symbol in any line as a shorthand to place a comment on the end of that line. e.g.; basic \remark PRINT "owls" ' Show my favourite bird \remark; You do not need to use any special separator, the ' on its own is enough to indicate where the comment begins.; Inside a string literal (delimited by double quotes), an apostrophe is just a character:; it does not start a comment.; Example:; basic @note PRINT "It's fine"` ' Prints the apostrophe @note

Everything from REM to the end of the line is treated as a comment.
REM has no runtime effect and produces no output.
You can place REM anywhere a statement is allowed (for example between executable lines).

Simple comment

REM This program draws a box
GCOL RGB(0,255,0)
RECTANGLE 50, 50, 200, 120

Temporarily disable a line

REM PRINT "Debug: entering main loop"

Empty remark (acts like a labelled blank line)

REM

PRINT "Hello"

Use consistent prefixes in your comments (e.g. REM TODO: or REM NOTE:) to make them easy to search for.
Keep comments adjacent to the code they describe so they stay in sync as the program evolves.