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Crystal Programming

You're reading from Crystal Programming A project-based introduction to building efficient, safe, and readable web and CLI applications

Product type Paperback

Published in May 2022

Publisher Packt

ISBN-13 9781801818674

Length 356 pages

Edition 1st Edition

Languages

Crystal

Concepts

Programming Language

Authors (2):

George Dietrich

Guilherme Bernal

View More author details

Table of Contents (26) Chapters

Preface

1. Part 1: Getting Started

2. Chapter 1: An Introduction to Crystal FREE CHAPTER

3. Chapter 2: Basic Semantics and Features of Crystal

4. Chapter 3: Object-Oriented Programming

5. Part 2: Learning by Doing – CLI

6. Chapter 4: Exploring Crystal via Writing a Command-Line Interface

7. Chapter 5: Input/Output Operations

8. Chapter 6: Concurrency

9. Chapter 7: C Interoperability

10. Part 3: Learn by Doing – Web Application

11. Chapter 8: Using External Libraries

12. Chapter 9: Creating a Web Application with Athena

13. Part 4: Metaprogramming

14. Chapter 10: Working with Macros

15. Chapter 11: Introducing Annotations

16. Chapter 12: Leveraging Compile-Time Type Introspection

17. Chapter 13: Advanced Macro Usages

18. Part 5: Supporting Tools

19. Chapter 14: Testing

20. Chapter 15: Documenting Code

21. Chapter 16: Deploying Code

22. Chapter 17: Automation

23. Other Books You May Enjoy

Appendix A: Tooling Setup

1. Appendix B: The Future of Crystal

Chapter 5: Input/Output Operations

This chapter will expand upon the CLI application started in the last chapter with a focus on input/output (IO) operations. It will cover the following topics:

Supporting terminal-based IO such as STDIN/STDOUT/STDERR
Supporting additional IO
Performance testing
Explaining IO behavior

By the end of this chapter, you should have a working understanding of IO operations, including how to use them and how they behave. With these concepts, you will be able to build interactive, efficient stream-based algorithms that could be used in a variety of applications. Knowing how IO behaves will also set you up for understanding more advanced concepts that will be covered in future chapters, such as Chapter 6, Concurrency.

The rest of the chapter is locked

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Authors (2)

George Dietrich

George Dietrich

George Dietrich is a software engineer, open-source aficionado, and Crystal community moderator. He holds a Master of Science degree in internet information systems and a Bachelor of Science degree in information sciences.

See other products by George Dietrich

Bernal

Bernal

Guilherme Bernal is the chief technology officer at Cubos Tecnologia. He holds a bachelor's degree in TI management. Guilherme co-founded a software development company and several tech start-ups, including one that focused on teaching programming skills to a new generation of developers. He is also a two-time world finalist in the coding competition, ACM ICPC.

See other products by Bernal

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