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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

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

Channel select

V has a select statement, which you can use to wait on multiple channels and their operations. A select statement can have multiple branches and cases, all of which can be used to represent channel push or pop operations. It can also have a timeout case, which we can define to exit out of select if none of the channel operation cases get triggered.

The select statement is syntactically similar to a match block, except that the cases of a select do not have to be of channels that accept similar data types. But for match, as explained in Chapter 6, Conditionals and Iterative Statements, all the conditional branches need to be of similar data types.

The following are a few points to keep note of when working with select statements:

  • The select statement randomly picks the cases that are ready to be executed.
  • The select statement blocks other cases until the active case finishes and exits out of the case.
  • The cases of select statements can be of any...
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Getting Started with V Programming
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