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React App creation

Introduction​

React is a JavaScript library for building user interfaces. It enables developers to create reusable UI components.

  • Developed by Facebook

  • Component-based architecture

Steps to Create React app​

You need to node.js and VSCode installed on your computer.

  1. Install Yarn Go to command promt and install

    npm install --global yarn

  2. Run Below command

    npm config set legacy-peer-deps true

    It will resolve below Error npm error code ERESOLVE npm error ERESOLVE unable to resolve dependency tree

  3. Create a folder in C:\ or D:
    D:\Source\FSD-MERN\React-Samples

    Go to (cd) React-Samples

  4. To Create an React App

    • Open React-Samples
    • Execute
    npx create-react-app my-app
    cd my-app
    yarn

  5. To start an application it will open in the default browser

    • Execute
    yarn start

This completes the sample react app creation and running the app.

Issues​

  1. Module not found: Error: Can't resolve 'web-vitals'
  • Execute in Terminal npm install --save-dev web-vitals