Category: React

Writing markup with JSX The markup syntax you’ve seen above is called JSX. It is optional, but most React projects use JSX for its convenience. All of the tools we recommend for local development support JSX out of the box. JSX is stricter than HTML. You have to close tags like <br />. Your component…

React apps are made out of components. A component is a piece of the UI (user interface) that has its own logic and appearance. A component can be as small as a button, or as large as an entire page. React components are JavaScript functions that return markup: Now that you’ve declared MyButton, you can…