Book Image

Getting Started with V Programming

By : Navule Pavan Kumar Rao
4 (1)
Book Image

Getting Started with V Programming

4 (1)
By: Navule Pavan Kumar Rao

Overview of this book

A new language on the block, V comes with a promising set of features such as fast compilation and interoperability with other programming languages. This is the first book on the V programming language, packed with concise information and a walkthrough of all the features you need to know to get started with the language. The book begins by covering the fundamentals to help you learn about the basic features of V and the suite of built-in libraries available within the V ecosystem. You'll become familiar with primitive data types, declaring variables, arrays, and maps. In addition to basic programming, you'll develop a solid understanding of the building blocks of programming, including functions, structs, and modules in the V programming language. As you advance through the chapters, you'll learn how to implement concurrency in V Programming, and finally learn how to write test cases for functions. This book takes you through an end-to-end project that will guide you to build fast and maintainable RESTful microservices by leveraging the power of V and its built-in libraries. By the end of this V programming book, you'll be well-versed with the V programming language and be able to start writing your own programs and applications.
Table of Contents (19 chapters)
1
Section 1: Introduction to the V Programming Language
4
Section 2: Basics of V Programming
12
Section 3: Advanced Concepts in V Programming

Implementing concurrency in V

Using V, you can write a program that runs functions concurrently using the go keyword. The go keyword is a built-in keyword in V. The go keyword is available anywhere in the program without any explicit import statements required. In the next section, we will understand the basic syntax of the go keyword.

The go keyword syntax

You can run any function concurrently using the go keyword, just by writing the go keyword followed by the name of the function, as shown here:

go FUNCTION_NAME_1(OPTIONAL_ARGUMENTS)

In the preceding syntax, which demonstrates the usage of the go keyword in V, all we can see is a simple function named FUNCTION_NAME_1 that is being run concurrently. You do not need to make any special syntactical changes to a function to run it concurrently.

With the approach mentioned in the preceding syntax, the active program spawns a new thread and lets the function run concurrently. If the active program is interested in knowing...