Book Image

Modern JavaScript Applications

By : Narayan Prusty
Book Image

Modern JavaScript Applications

By: Narayan Prusty

Overview of this book

Over the years, JavaScript has become vital to the development of a wide range of applications with different architectures. But JS moves lightning fast, and it’s easy to fall behind. Modern JavaScript Applications is designed to get you exploring the latest features of JavaScript and how they can be applied to develop high-quality applications with different architectures. Begin by creating a single page application that builds on the innovative MVC approach using AngularJS, then move forward to develop an enterprise-level application with the microservices architecture using Node to build web services. After that, shift your focus to network programming concepts as you build a real-time web application with websockets. Learn to build responsive, declarative UIs with React and Bootstrap, and see how the performance of web applications can be enhanced using Functional Reactive Programming (FRP). Along the way, explore how the power of JavaScript can be increased multi-fold with high performance techniques. By the end of the book, you’ll be a skilled JavaScript developer with a solid knowledge of the latest JavaScript techniques, tools, and architecture to build modern web apps.
Table of Contents (21 chapters)
Modern JavaScript Applications
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Introducing WebSocket


WebSocket is an application-layer protocol designed to facilitate bidirectional (either the client or server can send a message to the other party whenever a message is available) and full-duplex communication (both the client and server can send messages to each other simultaneously) between a web browser and WebSocket server in real time.

WebSocket is a binary protocol; therefore, it is faster than the HTTP protocol, which is a text-based protocol.

WebSocket has gained popularity and is already being used by many websites due to its real-time and full-duplex features. Due to overhead caused by comet techniques, it was not suitable for real-time bidirectional message transfer, and it was also not possible to establish a full-duplex communication system between a web browser and web server using comet. That is, comet techniques let us achieve only half-duplex communication system (only the client or server can send messages to the other party at a given time).

WebSocket...