Variable
Variables, like String_ constants, must be all caps. They also must begin with a ‘ character.
'C 'AC 'COLOR 'P
Variables can be implicitly assigned from a Collection_ inside the filter function or Aggregation_ functions.
There are two other ways to create Variables, with declare or let.
declare
The declare function must be at the beginning of a RECYCLE program. It is useful for creating program-wide constants or data that cannot be altered through the game. The data can be anything explicitly defined, commonly String_ and Integer_, or a StringCollection_ type.
(declare [Type] [Variable])
let
The let function is a local declaration of a Variable, followed by a segment of code where this Variable will be valid.
(let [Type] [Variable] [Expression])