weboack.config.js

const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const path = require('path');
module.exports = {
    mode: 'production',
    entry: './src/index.js',
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist/js'),
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: [['@babel/preset-env', {
                            useBuiltIns: "usage",
                            corejs: 3,
                            modules: false
                        }]]
                    }
                }
            },
            {
                test: /\.(sa|sc|c)ss$/,
                exclude: /node_modules/,
                use: [
                    MiniCssExtractPlugin.loader,
                    {
                        loader: 'css-loader',
                        options: { url: false }
                    },
                    {
                        loader: 'postcss-loader',
                        options: {
                            postcssOptions: {
                                plugins: [ require('autoprefixer') ]
                            }
                        }
                    },
                    'sass-loader'
                ]
            }
        ]
    },
    plugins: [
        new MiniCssExtractPlugin({
            filename: '../css/style.css',
        })
    ],
};