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Go Programming - From Beginner to Professional - Second Edition

You're reading from  Go Programming - From Beginner to Professional - Second Edition

Product type Book
Published in Mar 2024
Publisher Packt
ISBN-13 9781803243054
Pages 680 pages
Edition 2nd Edition
Languages
Author (1):
Samantha Coyle Samantha Coyle
Profile icon Samantha Coyle
Toc

Table of Contents (30) Chapters close

Preface 1. Part 1: Scripts
2. Chapter 1: Variables and Operators 3. Chapter 2: Command and Control 4. Chapter 3: Core Types 5. Chapter 4: Complex Types 6. Part 2: Components
7. Chapter 5: Functions – Reduce, Reuse, and Recycle 8. Chapter 6: Don’t Panic! Handle Your Errors 9. Chapter 7: Interfaces 10. Chapter 8: Generic Algorithm Superpowers 11. Part 3: Modules
12. Chapter 9: Using Go Modules to Define a Project 13. Chapter 10: Packages Keep Projects Manageable 14. Chapter 11: Bug-Busting Debugging Skills 15. Chapter 12: About Time 16. Part 4: Applications
17. Chapter 13: Programming from the Command Line 18. Chapter 14: File and Systems 19. Chapter 15: SQL and Databases 20. Part 5: Building For The Web
21. Chapter 16: Web Servers 22. Chapter 17: Using the Go HTTP Client 23. Part 6: Professional
24. Chapter 18: Concurrent Work 25. Chapter 19: Testing 26. Chapter 20: Using Go Tools 27. Chapter 21: Go in the Cloud 28. Index 29. Other Books You May Enjoy

Introduction

In the previous chapter, we learned how to use if, if-else, else-if, switch, case, continue, break, and goto in Go.

Go is a strongly typed language, and all data is assigned a type. That type is fixed and can’t be changed. What you can and can’t do with your data is constrained by the types you assign. Understanding exactly what defines every one of Go’s core types is critical to success with the Go language.

In later chapters, we’ll talk about Go’s more complex types, but those types are built on the core types defined in this chapter.

Go’s core types are well-thought-out and easy to understand once you understand the details. Having to understand the details means Go’s type system is not always intuitive. For example, Go’s most common number type, int, may be either 32 bits or 64 bits in size depending on the computer used to compile the code.

Types are needed to make data easier for humans to work with...

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