If you are a React developer and want to build your React apps faster and more robustly, this course is for you. Learn to integrate TypeScript with React, boost your productivity, and create apps that are easier to maintain.

In this course, you will learn how to utilize TypeScript’s sophisticated type system to make React development faster and your code more readable. You will learn how to create component props, state, and events that are strongly-typed, allowing you to quickly understand what you can pass and helping you avoid mistakes.

Lastly, you will set up React projects with TypeScript. First, you will learn how to do this with the Create React App tool, then how to create a React and TypeScript project with Webpack and Babel.

Using TypeScript with React

## What is TypeScript?

TypeScript is built and maintained by Microsoft. Microsoft's tagline for TypeScript is "_JavaScript that scales_," as it helps you write large JavaScript based programs.

TypeScript is a superset of JavaScript which means that any feature in JavaScript is available in TypeScript. TypeScript adds a powerful type system to the JavaScript we already know and love that enables code editors to provide code refactoring and navigation features along with type checking. 

TypeScript doesn't directly execute in the browser. Like JSX, it needs to be converted to JavaScript first. TypeScript has a compiler that can do this after type checking the code. The [Babel](https://babeljs.io/) compiler can also convert TypeScript code to JavaScript as well.

TypeScript is not limited to browser-based apps; it can be used on the backend to write [nodejs](https://nodejs.org/en/) based apps.


# What is TypeScript?

TypeScript is built and maintained by Microsoft. Microsoft's tagline for TypeScript is "_JavaScript that scales_," as it helps you write large JavaScript based programs.

TypeScript is a superset of JavaScript which means that any feature in JavaScript is available in TypeScript. TypeScript adds a powerful type system to the JavaScript we already know and love that enables code editors to provide code refactoring and navigation features along with type checking. 

TypeScript doesn't directly execute in the browser. Like JSX, it needs to be converted to JavaScript first. TypeScript has a compiler that can do this after type checking the code. The [Babel](https://babeljs.io/) compiler can also convert TypeScript code to JavaScript as well.

TypeScript is not limited to browser-based apps; it can be used on the backend to write [nodejs](https://nodejs.org/en/) based apps.


In this lesson, we learn what TypeScript is and start to understand the benefits it brings to a React app. We also learn how mature and popular TypeScript is.


Why TypeScript?

Using basic types

Creating types

Working with generic types

Creating strongly-typed function component props

Creating strongly-typed function component state

Creating strongly-typed class components

Creating strongly-typed component events and event handlers

Creating strongly-typed context

Creating strongly-typed refs

Creating React projects with TypeScript using Create React App

Creating a React and TypeScript project manually

Putting everything together

Understanding TypeScript

What is TypeScript? #