singe-page-application

webpack.js

entry: {
  main: './client/index.js',
},
output: {
  path: path.resolve('./build/client'),
  filename: 'js/[name].[chunkhash:8].js',
},
module: {
  rules: [
    { test: /\.js$/, exclude: /node_modules/, use: ['babel-loader'] },
    { test: /\.css$/, loader: ExtractTextPlugin.extract({ fallback: ['style-loader'], use: ['css-loader'] }) },
  ],
}
new ExtractTextPlugin('css/[name].[contenthash:8].css'),