webpack.config.js

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

module.exports = {
    mode: 'development',
    entry: "./src/index.ts",
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: "bundle.js"
    },
    module: {
        rules: [
            {
                test: /\.ts$/,
                use: [
                    // use顺序从下到上
                    {
                        loader: "babel-loader",
                        options: {
                            presets: [
                                [
                                    "@babel/preset-env",
                                    {
                                        targets: {
                                            "chrome": "125",
                                            "ie": "11"
                                        },
                                        "corejs": "3",
                                        "useBuiltIns": "usage"
                                    }
                                ]
                            ]
                        }
                    },
                    'ts-loader'
                ],
                exclude: /node_modules/,
            }]
    },
    plugins: [
        new CleanWebpackPlugin(),
        new HtmlWebpackPlugin(),
        new webpack.ProvidePlugin({
            Buffer: ['buffer', 'Buffer'],
            // process: 'process/browser'
        })
    ],
    resolve: {
        extensions: ['.ts', '.js'],
        fallback: {
            "stream": require.resolve("stream-browserify"),
            "crypto": require.resolve("crypto-browserify"),
            "assert": require.resolve("assert"),
            "vm": require.resolve("vm-browserify"),
            "buffer": require.resolve("buffer")
        }
    }
}