如何正确连接polyfill？ 我阅读了Babel 7的所有文档并遵循了它。在下面可以看到我的设置。 如果我将其添加到webpack配置中
entry: [
'core-js/stable',
'regenerator-runtime/runtime',
'./main.js'
],
然后一切正常。但根据文档，此行可以删除，因为babel.config.js中的所有设置
如果我从此行中删除，则Redux存储在IE11中不起作用
babel.config.js
module.exports = function (api) {
api.cache(true);
return {
presets: [
[
'@babel/preset-env',
{
debug: true,
useBuiltIns: 'entry',
corejs: {
version: '3.6',
proposals: false
},
}
],
'@babel/preset-react',
'rsuite'
],
plugins: [
'react-hot-loader/babel',
'@babel/plugin-proposal-class-properties',
'@babel/plugin-proposal-export-default-from',
'@babel/plugin-proposal-object-rest-spread',
'@babel/plugin-syntax-object-rest-spread',
'@babel/plugin-transform-arrow-functions',
'@babel/plugin-transform-async-to-generator',
'@babel/plugin-transform-classes',
'@babel/plugin-transform-parameters',
'@babel/plugin-transform-property-literals',
['@babel/plugin-transform-runtime',
{
corejs: {
version: 3,
proposals: true
}
}
],
'@babel/plugin-transform-spread',
'@babel/plugin-transform-template-literals',
'babel-plugin-styled-components',
]
};
};
package.json
"devDependencies": {
"@babel/core": "^7.9.0",
"@babel/plugin-proposal-class-properties": "^7.8.3",
"@babel/plugin-proposal-export-default-from": "^7.8.3",
"@babel/plugin-proposal-export-namespace-from": "^7.8.3",
"@babel/plugin-proposal-object-rest-spread": "^7.9.5",
"@babel/plugin-syntax-object-rest-spread": "^7.8.3",
"@babel/plugin-transform-arrow-functions": "^7.8.3",
"@babel/plugin-transform-async-to-generator": "^7.8.3",
"@babel/plugin-transform-classes": "^7.9.5",
"@babel/plugin-transform-parameters": "^7.9.5",
"@babel/plugin-transform-property-literals": "^7.8.3",
"@babel/plugin-transform-runtime": "^7.9.0",
"@babel/plugin-transform-spread": "^7.8.3",
"@babel/plugin-transform-template-literals": "^7.8.3",
"@babel/preset-env": "^7.9.5",
"@babel/preset-react": "^7.9.4",
"@devexpress/dx-react-grid-material-ui": "^2.4.0",
"babel-eslint": "^7.2.3",
"babel-helper-annotate-as-pure": "^7.0.0-beta.3",
"babel-jest": "^23.6.0",
"babel-loader": "^8.0.2",
"babel-plugin-styled-components": "^1.10.7",
"babel-preset-rsuite": "^4.0.1",
"clean-webpack-plugin": "^3.0.0",
"colors": "^1.3.2",
"copy-webpack-plugin": "^4.5.2",
"cross-env": "^5.2.0",
"css-loader": "^3.2.0",
"eslint": "^4.19.1",
"eslint-config-airbnb": "^16.1.0",
"eslint-loader": "^2.1.1",
"eslint-plugin-import": "^2.14.0",
"eslint-plugin-jsx-a11y": "^5.1.1",
"eslint-plugin-react": "^7.11.1",
"extract-text-webpack-plugin": "^4.0.0-beta.0",
"file-loader": "^2.0.0",
"html-webpack-plugin": "^3.2.0",
"image-webpack-loader": "^6.0.0",
"less": "^3.8.1",
"less-loader": "^4.1.0",
"mini-css-extract-plugin": "^0.7.0",
"optimize-css-assets-webpack-plugin": "^3.2.1",
"react-highlight-words": "^0.10.0",
"react-hot-loader": "^4.7.2",
"redux-saga": "^0.16.2",
"style-loader": "^0.23.1",
"terser-webpack-plugin": "^1.2.3",
"webpack": "^4.42.1",
"webpack-bundle-analyzer": "^3.6.1",
"webpack-cli": "^3.1.0",
"webpack-dev-server": "^3.1.8"
},
"dependencies": {
"@babel/runtime": "^7.9.2",
"@babel/runtime-corejs3": "^7.9.2",
"@hot-loader/react-dom": "^16.13.0",
"axios": "^0.19.2",
"c3": "0.4.11",
"cookie": "^0.3.1",
"core-js": "^3.6.5",
"date-fns": "^2.0.0",
"file-saver": "^2.0.2",
"jquery": "^3.4.1",
"js-base64": "^2.5.2",
"lodash": "^4.17.11",
"moment": "^2.24.0",
"normalizr": "^3.3.0",
"prop-types": "^15.7.2",
"query-string": "^5.1.1",
"ramda": "^0.26.1",
"rc-tree": "^3.1.1",
"react": "^16.8.3",
"react-datepicker": "^2.8.0",
"react-dom": "^16.8.3",
"react-html-parser": "^2.0.2",
"react-paginate": "^6.3.0",
"react-redux": "^7.1.0-rc.1",
"react-router-dom": "^4.4.0-beta.7",
"react-scrollbar": "^0.5.6",
"react-select": "^2.4.1",
"redux": "^4.0.5",
"redux-devtools-extension": "^2.13.8",
"redux-thunk": "^2.3.0",
"regenerator-runtime": "^0.13.5",
"reselect": "^3.0.1",
"rsuite": "^4.1.4",
"styled-components": "^4.1.3"
}
webpack规则
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
use: 'babel-loader',
},
{
test: /\.css$/,
use: cssLoaders()
},
{
test: /\.less$/,
exclude: /node_modules/,
use: cssLoaders('less-loader')
},
{
test: /\.(png|jpg|svg|gif?)$/,
use: 'file-loader'
},
{
test: /\.(woff|woff2|eot|ttf|otf?)$/,
use: 'file-loader'
},
]
},
答案 0 :(得分：0)
请不要删除您为polyfill添加的这些行
entry: [
'core-js/stable',
'regenerator-runtime/runtime',
'./main.js'
],
您做得对，请提供指向该文档可以删除此行的文档链接。我认为这是一个误会。
或者您可能错过了另一个babel插件;）
@babel-polyfill的说法
从Babel 7.4.0开始，不推荐使用此软件包，而直接包含core-js / stable（以充实ECMAScript功能）和regenerator-runtime / runtime（需要使用转译的生成器函数）：
因此，安装npm i core-js和npm i regenerator-runtime
然后在您的webpack配置文件中像这样管理入口点
...
entry: {
bundle: [require.resolve('core-js/stable'), require.resolve('regenerator-runtime/runtime'), paths.srcClient]
},
...
那你很好走
答案 1 :(得分：0)
我认为这是由于React不支持ie10的事实。我在未定义的ie10中设置和在ie11中未加载redux存储时出错。根据文档，反应需要全局导入polyfill。 https://reactjs.org/docs/javascript-environment-requirements.html