Javascript 如何使网页包仅为特定版本导入多边形填充？

我刚刚设法让webpack创建了两个分离版本，一个用于es5，另一个用于es6。 请参见下面的配置文件：

const path = require("path");

const common = require("./webpack.common");
const merge = require("webpack-merge");
const CleanWebpackPlugin = require("clean-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCssAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin");
var HtmlWebpackPlugin = require("html-webpack-plugin");

const es5Config = merge(common,{
  mode: "production",
  output: {
    filename: "[name].[contentHash].bundle.es5.js",
    path: path.resolve(__dirname, "dist")
  },
  optimization: {
    minimizer: [
      new OptimizeCssAssetsPlugin(),
      new TerserPlugin(),
      new HtmlWebpackPlugin({
        template: "./src/template.html",
        minify: {
          removeAttributeQuotes: true,
          collapseWhitespace: true,
          removeComments: true
        }
      }),
    ]
  },
  plugins: [

    new MiniCssExtractPlugin({ filename: "[name].[contentHash].css" }),
      new CleanWebpackPlugin(),
    ],

  module: {
    rules: [
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader, //3. Extract css into files
          "css-loader", //2. Turns css into commonjs
          "sass-loader" //1. Turns sass into css
        ]
      },
      {
      test: /\.m?js$/,
      exclude: /node_modules/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: [
            ['@babel/preset-env', {
              modules: false,
              useBuiltIns: 'entry',
              targets: {
                browsers: [
                  "IE 11"
                ],
              },
            }],
          ],
        },
      },
    }],
  },
});

const es6Config = merge(common, {
  mode: "production",
  output: {
    filename: "[name].[contentHash].bundle.es6.js",
    path: path.resolve(__dirname, "dist")
  },
  optimization: {
    minimizer: [
      new OptimizeCssAssetsPlugin(),
      new TerserPlugin(),
      new HtmlWebpackPlugin({
        template: "./src/template.html",
        minify: {
          removeAttributeQuotes: true,
          collapseWhitespace: true,
          removeComments: true
        }
      }),
    ]
  },
  plugins: [

    new MiniCssExtractPlugin({ filename: "[name].[contentHash].css" }),
      new CleanWebpackPlugin(),
    ],
  module: {
    rules: [
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader, //3. Extract css into files
          "css-loader", //2. Turns css into commonjs
          "sass-loader" //1. Turns sass into css
        ]
      },
      {
      test: /\.m?js$/,
      exclude: /node_modules/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: [
            ['@babel/preset-env', {
              modules: false,
              useBuiltIns: "usage",
              targets: {
                browsers: [
                  'Chrome >= 60',
                  'Safari >= 10.1',
                  'iOS >= 10.3',
                  'Firefox >= 54',
                  'Edge >= 15',
                ],
              },
            }],
          ],
        },
      },
    }],
  },
});

module.exports = [es5Config, es6Config];

现在的问题是，我希望webpack仅为es5构建导入polyfills。而use usebuilins设置为usage则无法填充任何内容

我可能用错了吗？可能与node_模块包有关

所以我只是在主文件中导入多边形填充，如：

import "core-js/stable";
import "regenerator-runtime/runtime";

如何使这些导入仅为es5构建添加？或者如何从网页包中包含多边形填充/导入

---

还有一个额外的问题，如果有人知道，我如何正确地使用带有“用法”的usebuiltins？因为到目前为止，即使为我的主文件添加了polifylls，例如，我仍然会在IE11中得到符号错误。

我发现了。以下是网页包配置： 常见的：

产品：

babel.config.json：

{
  "plugins": [
    [
      "@babel/plugin-transform-runtime",
      {
        "absoluteRuntime": true,
        "helpers": true,
        "regenerator": true,
        "useESModules": false
      }
    ]
  ]
}

因此，这与cdn polyfill相结合，仅为IE11加载polifylls。它也有自己的构造

这里唯一的问题是，结果输出将有单独的文件，es5构建应该在其所有脚本中都有nomodule。此外，对于es6，所有组件都应具有模块。 然后，我必须去手动添加那些我可以轻松制作自定义模板来处理的内容

但是后来polyfill的脚本被删除了，我仍然需要手动合并html文件。有人知道怎么处理吗

编辑： 1-对于属性，可以使用HtmlWebpackPlugin挂钩（）或ScriptExtHtmlWebpackPlugin将属性放置在标记中

在这里找到一些带有钩子的代码：

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


class es5TagTransformerHook {
  apply (compiler) {
    compiler.hooks.compilation.tap('MyPlugin', (compilation) => {
  
      HtmlWebpackPlugin.getHooks(compilation).alterAssetTagGroups.tapAsync(
        'es5TagTransformerHook', stacktraces
        async (data, cb) => {
          // Manipulate the content
          // data.html += 'The Magic Footer'
          // Tell webpack to move on
          data.bodyTags.forEach(t=>t.tagName === 'script'?t.attributes.nomodule = true:null)

          cb(null, data)
        }
      )
      
    })
  }
}

module.exports = es5TagTransformerHook

2-为了合并生成的html，我最终使用了以下要点：

{
  "plugins": [
    [
      "@babel/plugin-transform-runtime",
      {
        "absoluteRuntime": true,
        "helpers": true,
        "regenerator": true,
        "useESModules": false
      }
    ]
  ]
}

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


class es5TagTransformerHook {
  apply (compiler) {
    compiler.hooks.compilation.tap('MyPlugin', (compilation) => {
  
      HtmlWebpackPlugin.getHooks(compilation).alterAssetTagGroups.tapAsync(
        'es5TagTransformerHook', stacktraces
        async (data, cb) => {
          // Manipulate the content
          // data.html += 'The Magic Footer'
          // Tell webpack to move on
          data.bodyTags.forEach(t=>t.tagName === 'script'?t.attributes.nomodule = true:null)

          cb(null, data)
        }
      )
      
    })
  }
}

module.exports = es5TagTransformerHook