默认 webpack 箭头函数 IE11 问题

Question

我在使用 webpack 和 IE11 时遇到问题。我使用 Babel 进行转译，除 webpackbootstrap 函数外，所有功能和内容都被转译。如图所示，您可以看到破坏 IE11 的箭头功能。我还创建了自己的函数和 JS，并且它被转译，所以只有 webpack 自己的 js 没有被转译。有没有人见过同样的问题？我已经在互联网上搜索了 2 天，尝试了很多解决方案，但都没有解决问题。

正如你在图片中看到的那样，babel 正在正确地转译除了默认的 webpack javascripts 之外的所有内容。

我在这件事上疯了，请帮帮我！

提前致谢。

webpack.config.js

const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

const path = require("path");

module.exports = {
    module: {
        rules: [
            {
                test: /\.scss$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    {
                        loader: 'css-loader'
                    },
                    {
                        loader: 'sass-loader',
                        options: {
                            sourceMap: true,
                            // options...
                        }
                    }
                ]
            },
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env'],
                        plugins: ["@babel/plugin-transform-arrow-functions"]
                    }
                }
            }
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: path.resolve(__dirname, "src", "index.html")
        }),
        new MiniCssExtractPlugin({
            filename: 'css/main.css'
        })
    ]
};

package.json

{
  "name": "webpack-tutorial",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "dev": "webpack --mode development",
    "start": "webpack serve --mode development",
    "build": "webpack --mode production",
    "start-prod": "webpack serve --mode production",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.12.0",
    "@babel/plugin-proposal-class-properties": "^7.10.4",
    "@babel/plugin-transform-arrow-functions": "^7.10.4",
    "@babel/preset-env": "^7.12.0",
    "babel-loader": "^8.1.0",
    "babel-preset-es2015": "^6.24.1",
    "css-loader": "^5.0.0",
    "html-webpack-plugin": "^4.5.0",
    "mini-css-extract-plugin": "^1.0.0",
    "sass": "^1.27.0",
    "sass-loader": "^10.0.3",
    "style-loader": "^2.0.0",
    "webpack": "^5.1.0",
    "webpack-cli": "^4.0.0",
    "webpack-dev-server": "^3.11.0"
  }
}

示例 JS 输入

示例 JS 输出

Answer 1

他在使用 webpack v5 时遇到了类似的问题。

你可以在这里找到我的解决方案：

webpack + babel - transpile object arrow functions doesn't work