webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {
    devtool: "source-map",
    entry: path.join(__dirname, "example", "src", "main.tsx"),
    mode: "development",
    output: {
        path: path.join(__dirname, "example", "build"),
        filename: "react_bundle.js"
    },
    devServer: {
        port: 3000,
        contentBase: path.join(__dirname, "example", "build"),
        historyApiFallback: true
    },
    module: {
        rules: [
            {
                test: /\.(js||jsx||ts||tsx)$/,
                exclude: [/node_modules/],
                use: ["babel-loader"],
                resolve: {
                    extensions: [".js", ".jsx", ".ts", ".tsx"]
                }
            },

            {
                test: /\.scss$/,
                exclude: [/node_modules/],
                use: [
                    MiniCssExtractPlugin.loader,
                    "css-loader",
                    "sass-loader"
                ]
            },

            {
                test: /\.css$/,
                exclude: [/node_modules/],
                use: [MiniCssExtractPlugin.loader, "css-loader"]
            }
        ]
    },

    plugins: [
        new HtmlWebpackPlugin({
            template: path.join(__dirname, "example", "build", "index.html")
        }),
        new MiniCssExtractPlugin({ filename: "styles_bundle.css" })
    ]
}