1. npm init -y
2. npm i react react-dom
3. npm i webpack webpack-cli webpack-dev-server --save-dev
4. npm install @babel/core babel-loader @babel/preset-react @babel/preset-env --save-dev
5. npm install html-webpack-plugin --save-dev
6. npm run start
7. npm run build
8. npm install --save-dev style-loader css-loader

• refer another useRef scenarion in bookmark component.

• issue 1. toggle is not working for bookmark

• webpack error MIME type ('text/html') is not executable,

• to fix this error -> publicPath added in output obj webpack config

testing library

https://www.youtube.com/playlist?list=PLIGDNOJWiL182w2gKS5TsDuO6PZkJa0tK

• Jest is a testing framework which provides assertions, mocking etc..
• act and wait for usecase - https://medium.com/@AbbasPlusPlus/act-and-waitfor-react-testing-library-dba78bb57e30 https://davidwcai.medium.com/react-testing-library-and-the-not-wrapped-in-act-errors-491a5629193b