Описание тега webpack-file-loader

Hadles such imports

import img from './file.png'

with this configuration

  rules: [
  {
    test: /\.(gif|jpg|png)$/,
    use: [
      {
        loader: 'file-loader'
      }
    ]
  }

and result: image files were copied to output folder.

Other application: copy css styles to the output folder adding the hash.

https://github.com/webpack-contrib/file-loader