js what mb used what package in app.js

I was suggesting bundle analyzer to get the correct size of each module included.

Here is the link -
https://github.com/th0r/webpack-bundle-analyzer

Here is how to use this in Laravel mix

npm install --save-dev webpack-bundle-analyzer
Then in your webpack.mix.js

var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

mix.webpackConfig({
  plugins: [
     new BundleAnalyzerPlugin(),
  ]
});
Then run

npm run prod
Wait for http://127.0.0.1:8888/ to be ready for your browser.
You can remove this package after using.