看了无数的文件之后……

只需安装es2015预置(不是env !!)并将其添加到 .babelrc: ｛ “预设”:( ["es2015"， {"modules": false}] ］ ｝ 将webpack.config.js重命名为webpack.config.babel.js

试着将你的配置命名为webpack.config.babel.js。你应该在项目中包含通音寄存器。在react-router-bootstrap的例子。

Webpack依赖于内部的解释来实现此工作。

Babel 7和Webpack 4的配置

package.json

    ...
    "scripts": {
        "start": "webpack-dev-server --env.dev",
        "build": "webpack --env.prod",
    },
    "keywords": [],
    "author": "",
    "license": "ISC",
    "devDependencies": {
        "@babel/core": "^7.0.0",
        "@babel/plugin-proposal-class-properties": "^7.0.0",
        "@babel/preset-env": "^7.0.0",
        "@babel/preset-react": "^7.0.0",
        "@babel/register": "^7.0.0",
        "babel-loader": "^8.0.0",
        ...
        "webpack": "^4.17.2",
        "webpack-cli": "^3.1.0",
        "webpack-config-utils": "^2.3.1",
        "webpack-dev-server": "^3.1.8"

.babelrc

{
    "presets": ["@babel/preset-env", "@babel/preset-react"],
    "plugins": ["@babel/plugin-proposal-class-properties"]
}

webpack.config.babel.js

import webpack from 'webpack';
import { resolve } from 'path';

import { getIfUtils, removeEmpty } from 'webpack-config-utils';

export default env => {
    const { ifProd, ifNotProd } = getIfUtils(env);

    return {
        mode: ifProd('production', 'development'),
        devtool: ifNotProd('cheap-module-source-map'),
        output: {
            path: resolve(__dirname, ifProd('prod', 'dev')),
            filename: 'bundle.js'
        },

2022年的读者:

"webpack": "^5.70.0",
"webpack-cli": "^4.9.2",
"webpack-dev-server": "^4.7.4"

在package.json中添加"type": "module" 将webpack.config.js的语法改为ESM。 享受。

编辑:截至2021年2月

https://github.com/webpack/webpack-cli/pull/2381

你不能。你必须把它转换成CommonJS，要么用babel要么用esm。

https://github.com/webpack/webpack-cli/issues/282

但是你可以运行webpack -r esm @babel/register

还有一种方法是为node使用require参数:

Node -r babel-register ./node_modules/webpack/bin/webpack . xml

在electron-react-boilerplate中可以找到这种方法，看看build-main和build-renderer脚本。