Comments - Jamiras/RATools GitHub Wiki
Comments allow you to add text to a script that will not be executed. Typically they are used to better describe what a portion of the code is doing. RAScript uses a double slash to indicate the start of a comment. When a double slash is encountered, the rest of the line is ignored by the interpreter.
// This is a comment
// The comment is continued here
// This function will do something
code()
my_var = func(3) // func(4) wasn't working