webpack/webpack.prod.config.js at master · clydeu/webpack · GitHub

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const path = require('path');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')

module.exports = {
    mode: 'production',
    entry: './src/app.js',
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist')
    },
    optimization: {
        minimizer: [
          new UglifyJsPlugin({
            uglifyOptions: {
              output: {
                comments: false
              }
            }
          })
        ]
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                include: [
                    path.resolve(__dirname, 'src')
                ],
                exclude: /(node_modules)/,
                loader: 'babel-loader',
                query: {
                    presets: ['@babel/preset-env']
                }
            },
            {
                test: /\.css$/,
                include: [
                    path.resolve(__dirname, 'src/css')
                ],
                loader: 'style-loader!css-loader'
            }]
    }
};