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  • Book Overview & Buying Getting Started with V Programming
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Getting Started with V Programming

Getting Started with V Programming

By : Pavan Kumar Rao
4.4 (14)
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Getting Started with V Programming

Getting Started with V Programming

4.4 (14)
By: Pavan Kumar Rao
Buy this Book

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)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Download the example code files
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Download the color images
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Conventions used
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Get in touch
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Share Your Thoughts
1
Section 1: Introduction to the V Programming Language
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Section 1: Introduction to the V Programming Language
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Chapter 1: Introduction to V Programming
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Chapter 1: Introduction to V Programming
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The past, present, and future of V
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V is a statically typed and compiled programming language
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Simple and maintainable syntax
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Backward compatibility, stability, and easy to upgrade to future versions
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Features of V programming
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V as a framework
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Operating systems V supports
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Summary
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Chapter 2: Installing V Programming
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Chapter 2: Installing V Programming
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Technical requirements
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Installing V on the Windows OS
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Adding V to the environment variables in the Windows OS
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Accessing V programming using a REPL
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Installing V on the Linux OS (Ubuntu)
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Summary
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Section 2: Basics of V Programming
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Section 2: Basics of V Programming
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Chapter 3: Variables, Constants, and Code Comments
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Chapter 3: Variables, Constants, and Code Comments
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Technical requirements
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Understanding variables in V
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Working with constants in V
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Variables versus constants
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Adding code comments in V
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Summary
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Chapter 4: Primitive Data Types
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Chapter 4: Primitive Data Types
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Technical requirements
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Introducing primitive data types
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The Boolean data type
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Numeric data types
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Operations on numeric data types
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The string data type
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The rune data type
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Operations on the string data type
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Summary
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Chapter 5: Arrays and Maps
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Chapter 5: Arrays and Maps
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Technical references
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Arrays
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Maps
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Summary
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Chapter 6: Conditionals and Iterative Statements
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Chapter 6: Conditionals and Iterative Statements
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Technical requirements
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Conditional blocks
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Iterative statements
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Summary
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Chapter 7: Functions
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Chapter 7: Functions
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Technical requirements
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Introducing functions
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Understanding function types
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Understanding function features
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Summary
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Chapter 8: Structs
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Chapter 8: Structs
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Technical requirements
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Introducing structs
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Updating the fields of a struct
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Approaches to defining struct fields
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Defining methods for a struct
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Adding a struct as a field inside another struct
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Structs as trailing literal arguments to a function
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Summary
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Chapter 9: Modules
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Chapter 9: Modules
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Technical requirements
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Introducing modules
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Working with modules
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Summary
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Section 3: Advanced Concepts in V Programming
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Section 3: Advanced Concepts in V Programming
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Chapter 10: Concurrency
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Chapter 10: Concurrency
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Technical requirements
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Introducing concurrency
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Understanding parallelism
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Learning the basic terminology
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Getting started with concurrency
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Implementing concurrency in V
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Spawning a void function to run concurrently
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Implementing a real-life concurrency scenario programmatically
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Learning different approaches to implement concurrent programs
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Sharing data between the main thread and concurrent tasks
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Summary
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Chapter 11: Channels – An Advanced Concurrency Pattern
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Chapter 11: Channels – An Advanced Concurrency Pattern
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Technical requirements
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Syntax to define a channel
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Channel operations
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Channel properties
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Channel methods
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Working with unbuffered channels
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Working with buffered channels
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Channel select
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Summary
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Chapter 12: Testing
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Chapter 12: Testing
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Technical requirements
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Introduction to tests in V
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Understanding testsuite functions
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The AAA pattern of writing tests
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Writing tests for functions with optional return types
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Approaches to writing and running tests
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Summary
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Chapter 13: Introduction to JSON and ORM
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Chapter 13: Introduction to JSON and ORM
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Technical requirements
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Getting started with JSON
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Learning ORM
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Summary
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Chapter 14: Building a Microservice
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Chapter 14: Building a Microservice
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Technical requirements
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Introducing vweb
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Creating a project and organizing files
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Setting up the vweb web server
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Setting up utility functions and constants for the microservice
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Implementing RESTful endpoints
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Implementing an endpoint to create a note using HTTP verb POST
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Implementing an endpoint to retrieve a note by id using HTTP verb GET
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Implementing an endpoint to retrieve all notes using HTTP verb GET
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Implementing an endpoint to update a note using HTTP verb PUT
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Implementing an endpoint to delete a note using the HTTP verb DELETE
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Querying REST endpoints using Postman
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Summary
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Chapter 1: Introduction to V Programming

The V programming language is a statically typed compiled programming language that's used to build maintainable and robust software applications. It comes with high performance and simplicity, which allows software programmers to do rapid prototyping of applications at scale. You can write simple and clean code with minimal abstraction using V. V comes with performance as fast as C. V is not derived from any other programming language and is written in V itself and compiles itself in under 1 second.

The design of V has been influenced by programming languages such as Go, Rust, Oberon, Swift, Kotlin, and Python. The V language has similar syntax compared to the popular Go programming language. It is a simple, fast, safe, and compiled programming language. V offers all safety features by default, such as immutable variables, immutable structs, and pure functions. V offers great support for concurrency that is on par with Go programming.

In this chapter, we will cover the following topics:

  • The past, present, and future of V
  • V is a statically typed and compiled programming language
  • Simple and maintainable syntax
  • Backward compatibility, stability, and easy to upgrade to future versions
  • Features of V programming
  • V as a framework
  • Operating systems V supports

By the end of this chapter, you will have learned about the V language and its features. You will also understand Vinix, an operating system (OS) written completely in V.

Let's begin our journey by understanding how V came into existence, who created it, and what its future is.

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