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Getting Started with V Programming

You're reading from   Getting Started with V Programming An end-to-end guide to adopting the V language from basic variables and modules to advanced concurrency

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Product type Paperback
Published in Dec 2021
Publisher Packt
ISBN-13 9781839213434
Length 408 pages
Edition 1st Edition
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Author (1):
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Navule Pavan Kumar Rao Navule Pavan Kumar Rao
Author Profile Icon Navule Pavan Kumar Rao
Navule Pavan Kumar Rao
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Toc

Table of Contents (19) Chapters Close

Preface 1. Section 1: Introduction to the V Programming Language
2. Chapter 1: Introduction to V Programming FREE CHAPTER 3. Chapter 2: Installing V Programming 4. Section 2: Basics of V Programming
5. Chapter 3: Variables, Constants, and Code Comments 6. Chapter 4: Primitive Data Types 7. Chapter 5: Arrays and Maps 8. Chapter 6: Conditionals and Iterative Statements 9. Chapter 7: Functions 10. Chapter 8: Structs 11. Chapter 9: Modules 12. Section 3: Advanced Concepts in V Programming
13. Chapter 10: Concurrency 14. Chapter 11: Channels – An Advanced Concurrency Pattern 15. Chapter 12: Testing 16. Chapter 13: Introduction to JSON and ORM 17. Chapter 14: Building a Microservice 18. Other Books You May Enjoy

Approaches to defining struct fields

When declaring structs, you often need to limit or control the behavior of its field members. In this section, we will see how to implement such behavior, which includes the following:

  • Adding multiple mutable fields to a struct
  • Grouping fields in a struct using access modifiers
  • Defining required fields in a struct
  • Defining struct fields with default values

Let's discuss each of these in detail in the following subsections.

Adding multiple mutable fields to a struct

We can define all the mutable fields of a struct using the mut keyword followed by : on a separate line. The syntax for defining mutable fields in a struct is shown here:

struct Note {
        id      int
mut:
        message string
        status  bool
}

In the preceding code example...

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