webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const Dotenv = require('dotenv-webpack')

module.exports = {
    entry: './src/index.js',
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'public'),
        publicPath: '/'
    },

    plugins: [
        new HtmlWebpackPlugin({ 
            template: './src/index.html' 
        }),
        new Dotenv(), // 建立 .env 檔案隱藏敏感資料 
    ],

    devServer: {
        static: './dist',
        https: false,
        historyApiFallback: true,
        headers: {
            "Access-Control-Allow-Origin": "*",
        }
    },

    module: {
        rules: [
            {
                test: /\.css$/i,
                use: ['style-loader', 'css-loader'],
            },
            {
                test: /\.(png|svg|jpg|jpeg|gif)$/i,
                type: 'asset/resource',
            },
            {
                test: /\.(?:js|mjs|cjs|jsx)$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env', "@babel/preset-react"],
                    }
                }
            }
        ],
    }
};