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React

A JavaScript library for building user interfaces

🌐 reactjs.org, code

Learn​

Key elements​

  • React.Component

  • JSX is a syntax extension to JavaScript. It is recommended to use it with React to describe what the UI should look like. JSX produces React “elements”.

Quickstart​

# create the application and launch it (starts the development server)
npx create-react-app my-app
cd my-app
npm start

# later on...

# bundles the app into static files for production
npm run build

# starts the test runner
npm test

# removes the tool and copies build dependencies, configuration files and scripts into the app directory (no coming back)
npm run eject

Tutorials​

Books​

Testing​