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


In this chapter, we have explored test-driven development from the ground up. We have discussed the theory of TDD, explored the differences between unit, integration, and acceptance tests, and had a look at what a continuous integration build server process looks like. We then explored Jasmine as a testing framework, learned how to write tests, used expectations and matchers, and also explored Jasmine extensions to help with data-driven tests and DOM tests through fixtures. Finally, we had a look at test runners, discussed where and when they are best used, and used Protractor to drive web pages through Selenium and report the results back to a build server.

In the next chapter, we will explore how to create tests for our TypeScript compatible frameworks: Backbone, Aurelia, Angular, and React.