关于react在ie中的兼容

[yaoningvital]

用 create-react-app 搭建的脚手架创建的一个 react 应用，在项目中需要做 ie 浏览器的兼容。尝试了以下办法。

1. 当前插件的版本

{
  "name": "invoice-platform",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@babel/core": "7.2.2",
    "@babel/polyfill": "^7.4.4",
    "@svgr/webpack": "4.1.0",
    "antd": "^3.16.0",
    "antd-mobile": "^2.2.9",
    "axios": "^0.18.0",
    "babel-core": "7.0.0-bridge.0",
    "babel-eslint": "9.0.0",
    "babel-jest": "23.6.0",
    "babel-loader": "8.0.5",
    "babel-plugin-import": "^1.11.0",
    "babel-plugin-named-asset-import": "^0.3.1",
    "babel-preset-react-app": "^7.0.2",
    "bfj": "6.1.1",
    "case-sensitive-paths-webpack-plugin": "2.2.0",
    "core-js": "^3.0.1",
    "cross-fetch": "^3.0.1",
    "css-loader": "1.0.0",
    "dotenv": "6.0.0",
    "dotenv-expand": "4.2.0",
    "eslint": "5.12.0",
    "eslint-config-react-app": "^3.0.8",
    "eslint-loader": "2.1.1",
    "eslint-plugin-flowtype": "2.50.1",
    "eslint-plugin-import": "2.14.0",
    "eslint-plugin-jsx-a11y": "6.1.2",
    "eslint-plugin-react": "7.12.4",
    "file-loader": "2.0.0",
    "fs-extra": "7.0.1",
    "html-webpack-plugin": "4.0.0-alpha.2",
    "identity-obj-proxy": "3.0.0",
    "jest": "23.6.0",
    "jest-pnp-resolver": "1.0.2",
    "jest-resolve": "23.6.0",
    "jest-watch-typeahead": "^0.2.1",
    "mini-css-extract-plugin": "0.5.0",
    "optimize-css-assets-webpack-plugin": "5.0.1",
    "pnp-webpack-plugin": "1.2.1",
    "postcss-flexbugs-fixes": "4.1.0",
    "postcss-loader": "3.0.0",
    "postcss-preset-env": "6.5.0",
    "postcss-safe-parser": "4.0.1",
    "querystringify": "^2.1.1",
    "raf": "^3.4.1",
    "react": "^16.8.4",
    "react-dev-utils": "^8.0.0",
    "react-dom": "^16.8.4",
    "react-redux": "^6.0.1",
    "react-router-dom": "^5.0.0",
    "redux": "^4.0.1",
    "redux-logger": "^3.0.6",
    "redux-thunk": "^2.3.0",
    "resolve": "1.10.0",
    "sass-loader": "7.1.0",
    "style-loader": "0.23.1",
    "terser-webpack-plugin": "1.2.2",
    "url-loader": "1.1.2",
    "webpack": "4.28.3",
    "webpack-dev-server": "3.1.14",
    "webpack-manifest-plugin": "2.0.4",
    "workbox-webpack-plugin": "3.6.3"
  },
  "scripts": {
    "start": "node scripts/start.js",
    "build": "node scripts/build.js",
    "test": "node scripts/test.js"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ],
  "jest": {
    "collectCoverageFrom": [
      "src/**/*.{js,jsx,ts,tsx}",
      "!src/**/*.d.ts"
    ],
    "resolver": "jest-pnp-resolver",
    "setupFiles": [
      "react-app-polyfill/jsdom"
    ],
    "testMatch": [
      "<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
      "<rootDir>/src/**/?(*.)(spec|test).{js,jsx,ts,tsx}"
    ],
    "testEnvironment": "jsdom",
    "testURL": "http://localhost",
    "transform": {
      "^.+\\.(js|jsx|ts|tsx)$": "<rootDir>/node_modules/babel-jest",
      "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
      "^(?!.*\\.(js|jsx|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
    },
    "transformIgnorePatterns": [
      "[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$",
      "^.+\\.module\\.(css|sass|scss)$"
    ],
    "moduleNameMapper": {
      "^react-native$": "react-native-web",
      "^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
    },
    "moduleFileExtensions": [
      "web.js",
      "js",
      "web.ts",
      "ts",
      "web.tsx",
      "tsx",
      "json",
      "web.jsx",
      "jsx",
      "node"
    ],
    "watchPlugins": [
      "E:\\projects\\invoice-platform\\node_modules\\jest-watch-typeahead\\filename.js",
      "E:\\projects\\invoice-platform\\node_modules\\jest-watch-typeahead\\testname.js"
    ]
  },
  "babel": {
    "presets": [
      "react-app"
    ],
    "plugins": [
      [
        "import",
        {
          "libraryName": "antd-mobile",
          "style": "css"
        },
        "antd-mobile"
      ],
      [
        "import",
        {
          "libraryName": "antd",
          "libraryDirectory": "es",
          "style": "css"
        },
        "antd"
      ]
    ]
  },
  "devDependencies": {
    "node-sass": "^4.11.0",
    "redux-devtools": "^3.5.0"
  }
}

2. 尝试的方法

2.1 babel-polyfill

参考：https://babeljs.io/docs/en/6.26.3/babel-polyfill

1、安装

npm i babel-polyfill -S

2、导入

在入口文件src\index.js 中最顶部导入：

import 'babel-polyfill'

3、兼容性结果

ie11 ：支持 ie10 ：支持 ie9 ：不支持

2.2 @babel/polyfill

参考：https://babeljs.io/docs/en/babel-polyfill

1、安装

npm i @babel/polyfill -S

2、导入

在入口文件src\index.js 中最顶部导入：

import '@babel/polyfill'

3、兼容性结果

ie11 ：支持 ie10 ：支持 ie9 ：不支持

2.3 react-app-polyfill

参考：https://facebook.github.io/create-react-app/docs/supported-browsers-features

1、安装

npm install react-app-polyfill

2、导入

For IE9:

// These must be the first lines in src/index.js
import 'react-app-polyfill/ie9';
import 'react-app-polyfill/stable';
// ...

For IE11:

// These must be the first lines in src/index.js
import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
// ...

3、兼容性结果

ie11 ：不支持 ie10 ：不支持 ie9 ：不支持

所以，综上，选择了@babel/polyfill。

[yaoningvital]

今天在做项目时，打包的时候，终端提示：

@babel/polyfill is deprecated...

查了一下，@babel/polyfill 的官网提示如下： As of Babel 7.4.0, this package has been deprecated in favor of directly including core-js/stable (to polyfill ECMAScript features) and regenerator-runtime/runtime (needed to use transpiled generator functions):

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

于是，将项目入口文件顶部的

import '@babel/polyfill'

替换为：

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

然后，就没有@babel/polyfill is deprecated...的警告了。

同时，还解决了IE兼容性的问题。原本项目在IE下会有报错，改为上面的引用之后，在IE下也不报错了。