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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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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

Simple and maintainable syntax

As we've already learned, V is inspired by the Go programming language, and its design has also been influenced by Oberon, Rust, Swift, Kotlin, and Python. V comes with the simplest form of coding style when it comes to syntax and semantics. If you are a Go programmer, writing a program in V gives you an adrenaline rush because of the simplicity of the syntax. The syntactic simplicity offered by V lets beginners of this programming language learn quickly and understand the basics instead of trying to learn about the semantics.

V takes a similar or even fewer number of LOCs to mimic functionality written in Go. It has only one standard format for writing code, and this is managed by vfmt, a built-in library that helps format the code. vfmt strictly formats your code according to a globally unique coding standard across all V projects.

All it takes to write a simple program in V is just the following three LOCs:

fn main() {
    println('Hello, from V lang!')
}

You don't even need fn main() { and the closing bracket, }. Just place the following line in a file named hello.v and run it using the v run hello.v command:

println('Hello, from V lang!')

In contrast to V, where we can write a simple program in just a line, a similar program written in Go, after formatting, takes at least seven LOCs, which appear as follows:

package main
import "fmt"
func main() {
    fmt.Println("Hello from Go lang!")
}

As you can see, compared to the preceding code, the V program shown earlier looks concise and minimal while at the same time offering readability and avoiding a lot of unnecessary imports.

You have been reading a chapter from
Getting Started with V Programming
Published in: Dec 2021
Publisher: Packt
ISBN-13: 9781839213434
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