REBOL 3 Guide: Code: Writing code

In order to write code, you need to understand the basic principles.

Please note

If you already know other programming languages, then you know some of these concepts, but watch out: REBOL is different in many ways. So, it may be good just to scan these over.

In this section:

• Learn the code: basic syntax of the language. It's different in important ways.
• Please read code: evaluating blocks, because code is data, and data can be code.
• It is essential to understand the code: words and variables.
• The key to code is to know code: how code is evaluated including operator precedence.
• Learn about code: conditional evaluation used for functions like if, either, case, switch, and select.
• For iteration, read code: repeated evaluation (loops) about loop, repeat, for, foreach, forall, while, and until.
• And finally, you'll need code: defining functions to build any serious programs.

Of course, there's quite a lot more to on this topic, which you can find in the Expressions section.