How to Make your React Components Type-Safe with TypeScript

How to Make your React Components Type-Safe with TypeScript. I love writing all my React code in TypeScript for a variety of reasons, but one of the big ones is that I am able to make my components type-safe out of the box, which in turn makes them less error prone.

You will learn just how simple making type-safe components in React can be and how much that is gonna improve writing React code

I love writing all my React code in TypeScript for a variety of reasons, but one of the big ones is that I am able to make my components type-safe out of the box, which in turn makes them less error prone. This is also a huge benefit when it comes to code completion in editors such as VS Code. If you are used to writing your React code in vanilla JavaScript what I am about to show you would be the equivalent to using prop-types.

Let’s Start Coding

I don’t plan on walking through coding a full React project for this tutorial, but if you would like to try out the code snippets below then you can run the following command in your terminal (command prompt or powershell if your on Windows).

npx create-react-app typescript-demo-app --template typescript

This will create a starter react app that uses TypeScript. After it has finished creating your project you can go ahead and open it up in the code-editor of your choice.

The following code snippets will walk through giving your components types in a couple different scenarios.

software-development typescript react javascript programming

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