Book Image

Learning TypeScript 2.x - Second Edition

By : Remo H. Jansen
Book Image

Learning TypeScript 2.x - Second Edition

By: Remo H. Jansen

Overview of this book

TypeScript is an open source and cross-platform statically typed superset of JavaScript that compiles to plain JavaScript and runs in any browser or host. This book is a step-by-step guide that will take you through the use and benefits of TypeScript with the help of practical examples. You will start off by understanding the basics as well as the new features of TypeScript 2.x. Then, you will learn how to work with functions and asynchronous programming APIs. You will continue by learning how to resolve runtime issues and how to implement TypeScript applications using the Object-oriented programming (OOP) and functional programming (FP) paradigms. Later, you will automate your development workflow with the help of tools such as Webpack. Towards the end of this book, you will delve into some real-world scenarios by implementing some full-stack TypeScript applications with Node.js, React and Angular as well as how to optimize and test them. Finally, you will be introduced to the internal APIs of the TypeScript compiler, and you will learn how to create custom code analysis tools.
Table of Contents (17 chapters)

Gulp

Two of the most popular JavaScript task runners are Grunt and Gulp. The main difference between Gulp and Grunt is that while in Grunt we work using files as the input and output of our tasks, in Gulp we work with streams and pipes.

Grunt is configured using some configuration fields and values. However, Gulp prefers code over configuration. This approach makes the Gulp configuration somehow more minimalist and easy to read.

In this book, we will work with Gulp; however, if you want to learn more about Grunt, you can do so at http://gruntjs.com/.

To gain a good understanding of Gulp, we are going to configure some tasks.

Let's start by installing gulp using npm:

    npm install gulp -g

Then let's create a JavaScript file named gulpfile.js inside the root folder of our project, which should contain the following piece of code:

let gulp = require("gulp")...