webpack.config.js

const CleanWebpackPlugin = require('clean-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const path = require('path');
const webpack = require('webpack');

const config = {
    entry: {
        app: './src/index.ts'
    },
    output: {
        filename: '[name].bundle.js',
        path: path.resolve(__dirname, 'dist'),
        publicPath: '/'
    },
    devtool: 'inline-source-map',
    devServer: {
        contentBase: './dist',
        hot: true
    },
    module: {
        rules: [
            {
                test: /\.(css|scss)$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'sass-loader'
                ]
            },
            {
                test: /\.(ts|tsx)?$/,
                loader: 'ts-loader',
                exclude: /node_modules/
            }
        ]
    },
    plugins: [
        new CleanWebpackPlugin(),
        new HtmlWebpackPlugin({
            favicon: './src/favicon.ico',
            template: './src/index.html',
            title: 'Mapbox GL Webpack Demo'
        }),
        new webpack.HotModuleReplacementPlugin()
    ],
    resolve: {
        extensions: [
            '.tsx',
            '.ts',
            '.js'
        ]
    }
}

module.exports = config;