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Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition
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Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition

by Zed A. Shaw
December 2014
Beginner
336 pages
7h 41m
English
Addison-Wesley Professional
Content preview from Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition

Exercise 31. Making Decisions

In the first half of this book, you mostly just printed out things called functions, but everything was basically in a straight line. Your scripts ran starting at the top and went to the bottom where they ended. If you made a function you could run that function later, but it still didn’t have the kind of branching you need to really make decisions. Now that you have if, else, and elsif you can start to make scripts that decide things.

In the last script you wrote out a simple set of tests asking some questions. In this script you will ask the user questions and make decisions based on their answers. Write this script, and then play with it quite a lot to figure it out.

ex31.rb

 1     ...

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Publisher Resources

ISBN: 9780133135633Purchase book