webpack.config.js

var path = require('path');
var BundleTracker = require('webpack-bundle-tracker');
var MiniCssExtractPlugin = require('mini-css-extract-plugin');
var webpack = require('webpack');

module.exports = {
    context: __dirname,
    mode: "development",
    entry: './assets/js/index',
    output: {
        path: path.resolve('./assets/webpack_bundles/'),
        filename: "[name]-[hash].js"
    },
    plugins: [
        new BundleTracker({filename: './webpack-stats.json'}),
        new MiniCssExtractPlugin({filename: "bundle.css"}),
    ],
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /(node_modules)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env']
                    }
                }
            },
            {
                test: /\.(sa|sc|c)ss$/,
                use: [
                    {
                        loader: MiniCssExtractPlugin.loader
                    },
                    {
                        loader: "css-loader",
                    },
                    {
                        loader: 'postcss-loader', // Run post css actions
                        options: {
                            plugins: function () { // post css plugins, can be exported to postcss.config.js
                                return [
                                    require('precss'),
                                    require('autoprefixer')
                                ];
                            }
                        }
                    },
                    {
                        loader: "sass-loader",
                    }
                ]
            },
            {
                test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
                use: [
                    {
                        loader: 'file-loader',
                        options: {
                            name: '[name].[ext]',
                            outputPath: 'fonts/'
                        }
                    }
                ]
            }
        ]
    }
};