Book Image

Mastering TypeScript 3 - Third Edition

By : Nathan Rozentals
Book Image

Mastering TypeScript 3 - Third Edition

By: Nathan Rozentals

Overview of this book

TypeScript is both a language and a set of tools to generate JavaScript. It was designed by Anders Hejlsberg at Microsoft to help developers write enterprise-scale JavaScript. Starting with an introduction to the TypeScript language, before moving on to basic concepts, each section builds on previous knowledge in an incremental and easy-to-understand way. Advanced and powerful language features are all covered, including asynchronous programming techniques, decorators, and generics. This book explores many modern JavaScript and TypeScript frameworks side by side in order for the reader to learn their respective strengths and weaknesses. It will also thoroughly explore unit and integration testing for each framework. Best-of-breed applications utilize well-known design patterns in order to be scalable, maintainable, and testable. This book explores some of these object-oriented techniques and patterns, and shows real-world implementations. By the end of the book, you will have built a comprehensive, end-to-end web application to show how TypeScript language features, design patterns, and industry best practices can be brought together in a real-world scenario.
Table of Contents (16 chapters)
Free Chapter
TypeScript Tools and Framework Options

AMD module loading

The module exporting and importing syntax that we have used thus far uses what is known as the CommonJS syntax, and is the default mechanism for module loading when using Node. Traditionally, this module loading syntax was not available for use within a browser, and as such, an alternative to CommonJS became popular, named Asynchronous Module Definition, or AMD. One of the most prevalent libraries to use AMD is RequireJS, or simply Require. In this section, we will reuse the source code for the modules we created in Node, and recompile them for use with AMD. We will then show how to use Require to load these modules in the browser.

AMD compilation

In order to compile our code to use the AMD module syntax...