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 an interface

An interface allows a new type to be created with a name and structure. The structure includes all the properties and methods that the type has without any implementation.

Interfaces don't exist in JavaScript; they are only used by the TypeScript compiler type checking process.

# Creating an interface

We create an interface with the `interface` keyword, followed by its name, followed by the properties and methods that make up the interface in curly brackets:

```
interface TypeName {
  propertyName: PropertyType;
  methodName: (paramName: ParamType) => MethodReturnType
}
```

As an exercise, create an interface called `ButtonProps` that has a `text` property of type `string` and an `onClick` method that has no parameters and doesn't return anything. 
 We should be able to use this interface to create a `BuyButton` object beneath it. Run the code when you have finished to check that there are no errors.

In this lesson, we learn what interfaces are and how to create them.


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 interfaces

Understanding an interface #

Creating an interface #