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)
11
Assessments

Questions

  1. Give the results of the following statements. Do it in your head first, then verify it in the console:
      if 0 [print "0 is true"]
if 13 = 13.0 [print "ok"]
if 13 == 13.0 [print "ok"]
  1. What is the value of out after executing the following statements?
      p: 7
out: either p == 7.0 ["p is 7"]["bad luck"]
  1. Write a code snippet that asks the user whether it is raining, and provide the appropriate whether or not it is raining. Use the multiline block style.
  2. Write a switch snippet where the values are of different datatypes—for example, use an item variable that has the "red" value and test on different values.
  3. Write a case snippet that tests whether a name word contains a vowel (a, e, i, o, or u). Hint: The conditions are of the form find name "a";, and so on. Look up an explanation...