• it’s JS Library not framework

  • Reuse Component

  • SPA : Single Page Application

    • only 1 index.html
    • not loading any new page
    • when we move to any page in react it’s only render the component. let say we have open the website, there are header and footer. when we move page, the footer and header is not re-rendering. it’s stay .. only another component will rendering / change

    install REACT JS in our laptop

    npm install -g create-react-app
npx create-react-app PROJECT_NAME