Hi Currently, whenever we are making a change in JS file, we have to re-run bundle script again to generate all bundles again, which takes time and it is pain for developers to watch it till finished.
So Webpack `watch` option lets the Webapck watch for changes in the file and compiles only files which are changed after the initial build. Also added an option `--progress` which updates on terminal about packages being built and percentage completed. So, you can run bundle in watch mode in terminal: ``` $ yarn run bundle:watch ``` Reference [link]( https://webpack.js.org/configuration/watch/#components/sidebar/sidebar.jsx) Please review the patch Thanks, Surinder Kumar
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