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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

Structs as trailing literal arguments to a function

As V does not support default function arguments or named arguments, we can use trailing struct literal syntax. In V, you can define functions that accept structs as input arguments. Therefore, we can pass a struct with default values to a function that accepts the struct as an input argument.

For example, let's create a function that creates a Note struct to remind us to buy groceries. This function will take the Note struct provided as an input argument and create a new Note struct that prepends a phrase, Buy Groceries:, to the message field of every new note being created, as follows:

fn new_grocery_note(n Note) &Note {
        return &Note{
                id: n.id
                message: 'Buy Groceries...
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