Book Image

Learn TypeScript 3 by Building Web Applications

By : Sebastien Dubois, Alexis Georges
Book Image

Learn TypeScript 3 by Building Web Applications

By: Sebastien Dubois, Alexis Georges

Overview of this book

TypeScript is a superset of the JavaScript programming language, giving developers a tool to help them write faster, cleaner JavaScript. With the help of its powerful static type system and other powerful tools and techniques it allows developers to write modern JavaScript applications. This book is a practical guide to learn the TypeScript programming language. It covers from the very basics to the more advanced concepts, while explaining many design patterns, techniques, frameworks, libraries and tools along the way. You will also learn a ton about modern web frameworks like Angular, Vue.js and React, and you will build cool web applications using those. This book also covers modern front-end development tooling such as Node.js, npm, yarn, Webpack, Parcel, Jest, and many others. Throughout the book, you will also discover and make use of the most recent additions of the language introduced by TypeScript 3 such as new types enforcing explicit checks, flexible and scalable ways of project structuring, and many more breaking changes. By the end of this book, you will be ready to use TypeScript in your own projects and will also have a concrete view of the current frontend software development landscape.
Table of Contents (15 chapters)

Creating the project

We have prepared the base skeleton of this new project for you. You can find it in the code samples folder, under Chapter04/mediaman-v1-initial. Copy that folder and open it in your favorite editor.

Next, install the necessary dependencies using npm install.

If you look at the package.json and index.html files, you'll notice some changes compared to what we did for TodoIt. You don't need to worry about those for now, as we will cover related subjects in later chapters. If you're really curious and/or impatient though, you can take a look at the documentation for Parcel.js (https://parceljs.org), which is the bundler and module loader that we have added to the project and with which we will now build it.

The scripts are mostly the same as before:

  • npm install will install everything you need.
  • npm run tsc will compile the code.
  • npm run build will...