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

Using Express with Node

In this section of the chapter, we will continue our exploration of modules by showing how to build a simple Node web server application. In order to accomplish this, we will make use of the ExpressJS (or simply Express) web framework for Node. Express provides us with a library of reusable Node modules to handle the basic functionality required for building a web server. This includes routing, a template engine for generating web pages, libraries for handling sessions and cookies, authentication, and error messages (think 404 errors ), to name a few. Express provides a rich set of modules and APIs to cover everything you would need for a production web server application.

Express setup

In order to...