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)


  1. What's wrong with the following line of code? Correct it:
      name: John
  1. Examine the system word in the console with ? system.
  2. Give the values of i1 and i2 after evaluating i2: 1 + i1: 1.
  3. To better see the difference between them, use print and probe on [10 * 5].
  4. Coming from other languages, it is common to type the mistake to_float 42; what happens then? Explain this.
  5. See whether you can find the results of the following expressions for yourself (see Chapter03/

        print (6 < 13) and (42 < 33)
print (43 < 42) xor (44 < 43)
print complement 3

  1. From the following code snippet evaluate the last three lines and explain the results:
        a: "red" ;== "red"
b: copy a ;== "red"
a = b
a == b
a =? b
  1. What's the output of print [3 = 2 tab 5 = 5 tab...