webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');

module.exports = {
    mode: "development",
    entry: "./src/dev-index.ts",
    devtool: 'inline-source-map',
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'testing'),
        clean: true,
    },
    module: {
        rules: [
            {
                test: /\.ts$/,
                use: [{
                    loader: 'ts-loader',
                    options: {
                        transpileOnly: true
                    }
                }],
                exclude: /node_modules/,
            },
            {
                test: /\.css$/i,
                use: ["style-loader", "css-loader"]
            }
        ]
    },
    resolve: {
        extensions: ['.ts', '.js']
    },
    plugins: [
        new HtmlWebpackPlugin({
            filename: "index.html",
            template: "./src/index.html"
        }),
        new ForkTsCheckerWebpackPlugin()
    ],
    devServer: {
        static: {
            directory: path.join(__dirname, 'testing')
        },
        compress: true,
        port: 8080,
        open: false, 
        hot: true
    }
}