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Getting Started with V Programming

Getting Started with V Programming

By : Pavan Kumar Rao
4.4 (16)
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Getting Started with V Programming

Getting Started with V Programming

4.4 (16)
By: 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)
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1
Section 1: Introduction to the V Programming Language
4
Section 2: Basics of V Programming
12
Section 3: Advanced Concepts in V Programming

Introducing functions

Functions allow you to logically wrap a set of instructions inside a code block to perform a specific operation. Often, it is necessary to provide them with a name that represents the underlying logic they encompass. Functions might take arguments as an input to perform an operation. Additionally, they might return the result of the operation performed by it. Therefore, functions offer code reusability and code readability.

A function can call another function if required to do so. In some scenarios, a function can call itself to perform a recursive operation.

V facilitates working with functions. A function in V is created using the fn keyword. The typical syntax to create a function in V is shown here:

ACCESS-MODIFIER fn FUNCTION_NAME(ARGUMENT1_NAME ARGUMENT1_DATATYPE, ARGUMENT2_NAME ARGUMENT2_DATATYPE) RETURN_DATATYPE {
    OPERATIONS
}

In the preceding syntax, we can identify two parts of a function:

  • A method signature...
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