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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

Table of Contents (30) Chapters

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

Parameters

Parameters define what arguments can be passed to our function. Functions can have zero or more parameters. Even though Go allows us to define multiple parameters, we should take care not to have a huge parameter list; that would make the code harder to read. It may also be an indication that the function is doing more than one specific task. If that is the case, we should refactor the function. Take, for example, the following code snippet:

func calculateSalary(lastName string, firstName string, age int, state string, country string, hoursWorked int, hourlyRate, isEmployee bool) {
// code
}

The preceding code is an example of a function whose parameter list is bloated. The parameter list should pertain only to the single responsibility of the function. We should only define the parameters that are needed to solve the specific problem that the function is built for.

Parameters are the input types that our function will use to perform its task. Function parameters...

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