Book Image

Learn Red ? Fundamentals of Red

By : Ivo Balbaert
Book Image

Learn Red ? Fundamentals of Red

By: Ivo Balbaert

Overview of this book

A key problem of software development today is software bloat, where huge toolchains and development environments are needed in software coding and deployment. Red significantly reduces this bloat by offering a minimalist but complete toolchain. This is the first introductory book about it, and it will get you up and running with Red as quickly as possible. This book shows you how to write effective functions, reduce code redundancies, and improve code reuse. It will be helpful for new programmers who are starting out with Red to explore its wide and ever-growing package ecosystem and also for experienced developers who want to add Red to their skill set. The book presents the fundamentals of programming in Red and in-depth informative examples using a step-by-step approach. You will be taken through concepts and examples such as doing simple metaprogramming, functions, collections, GUI applications, and more. By the end of the book, you will be fully equipped to start your own projects in Red.
Table of Contents (13 chapters)

Using Functions and Objects

This chapter is about modularizing code through the use of functions and objects.

We have already encountered a lot of built-in functions, such as print and cd, but of course you can write user-defined functions as well. When a program's code gets longer and more complex, you want to be able to give a name to certain code segments. For example, when processing a data stream from a file or the network, you'll want to have a process-request or process-record function that contains the logic of dealing with one chunk of data. That way, you can call this function each time you need it. This leads to less code that is better structured and more readable. Less code means fewer bugs! Functions can take parameters, local variables, and refinements, and we'll be exploring how to use these later on in the chapter.

Another way to group code is to...