Gain insights into integrating TypeScript with React to improve productivity. Learn about strongly-typed props, state, and events, and set up projects using Create React App, Webpack, and Babel.

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

# Understanding a tuple

A tuple can be thought of as an array with a fixed number of elements. Some of React’s hooks return tuples. Can you guess those hooks?


One example is the `useState` hook:

```
const [state, setState] = useState(initialState);
```

So, the tuple that `useState` returns is `[state, setState]`.

Another example is the `useReducer` hook:

```
const [state, dispatch] = useReducer(reducer, initialState);
```

So, the tuple that `useReducer` returns is `[state, dispatch]`.


Tuples are useful when we want to store multiple bits of data. Tuples are a little more concise than an object but aren't as self-documenting as objects. Tuples are nice for small and obvious data structures.

The tuple type doesn't exist in JavaScript. The closest we have are arrays, but there is no way of enforcing the number of elements and the type of each element. 

In this lesson, we will learn what tuples are and how we can use them in TypeScript.

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

Creating a strongly-typed tuple

Understanding a tuple #