Book Image

Mastering JavaScript Design Patterns - Second Edition

By : Simon Timms
Book Image

Mastering JavaScript Design Patterns - Second Edition

By: Simon Timms

Overview of this book

With the recent release of ES-2015, there are several new object-oriented features and functions introduced in JavaScript. These new features enhance the capabilities of JavaScript to utilize design patterns and software design methodologies to write powerful code. Through this book, you will explore how design patterns can help you improve and organize your JavaScript code. You’ll get to grips with creational, structural and behavioral patterns as you discover how to put them to work in different scenarios. Then, you'll get a deeper look at patterns used in functional programming, as well as model view patterns and patterns to build web applications. This updated edition will also delve into reactive design patterns and microservices as they are a growing phenomenon in the world of web development. You will also find patterns to improve the testability of your code using mock objects, mocking frameworks, and monkey patching. We’ll also show you some advanced patterns including dependency injection and live post processing. By the end of the book, you'll be saved of a lot of trial and error and developmental headaches, and you will be on the road to becoming a JavaScript expert.
Table of Contents (5 chapters)

Chapter 14. ECMAScript-2015/2016 Solutions Today

I cannot count the number of times I have mentioned upcoming versions of JavaScript in this book, rest assured that it's a large number. It is somewhat frustrating that the language is not keeping pace with the requirements of application developers. Many of the approaches we've discussed become unnecessary with a newer version of JavaScript. There are, however, some ways to get the next version of JavaScript working today.

In this chapter we'll look at a couple of these, specifically:

  • Typescript
  • BabelJS

TypeScript

There is no shortage of languages that compile to JavaScript. CoffeeScript is perhaps the best known example of one of these languages, although the Google web toolkit that compiles Java to JavaScript was also once very popular. Never ones to be left behind or use somebody else's solution, Microsoft released a language called TypeScript in 2012. It is designed to be a superset of JavaScript in the same...