[英]JSX not allowed in files with extension ' .js' with eslint-config-airbnb
I've installed eslint-config-airbnb that is supposed to pre configure ESLINT for React:我已经安装了eslint-config-airbnb ,它应该为 React 预配置 ESLINT:
Our default export contains all of our ESLint rules, including ECMAScript 6+ and React.
我们的默认导出包含我们所有的 ESLint 规则,包括 ECMAScript 6+ 和 React。 It requires eslint, eslint-plugin-import, eslint-plugin-react, and eslint-plugin-jsx-a11y.
它需要 eslint、eslint-plugin-import、eslint-plugin-react 和 eslint-plugin-jsx-a11y。
My .eslintrc
extending its configuration:我的
.eslintrc
扩展了它的配置:
{ "extends": "eslint-config-airbnb",
"env": {
"browser": true,
"node": true,
"mocha": true
},
"rules": {
"new-cap": [2, { "capIsNewExceptions": ["List", "Map", "Set"] }],
"react/no-multi-comp": 0,
"import/default": 0,
"import/no-duplicates": 0,
"import/named": 0,
"import/namespace": 0,
"import/no-unresolved": 0,
"import/no-named-as-default": 2,
"comma-dangle": 0, // not sure why airbnb turned this on. gross!
"indent": [2, 2, {"SwitchCase": 1}],
"no-console": 0,
"no-alert": 0,
"linebreak-style": 0
},
"plugins": [
"react", "import"
],
"settings": {
"import/parser": "babel-eslint",
"import/resolve": {
"moduleDirectory": ["node_modules", "src"]
}
},
"globals": {
"__DEVELOPMENT__": true,
"__CLIENT__": true,
"__SERVER__": true,
"__DISABLE_SSR__": true,
"__DEVTOOLS__": true,
"socket": true,
"webpackIsomorphicTools": true
}
}
Unfortunatelly I'm getting the following error when linting a.js file with React JSX code inside it:不幸的是,在对其中包含 React JSX 代码的 .js 文件进行 linting 处理时出现以下错误:
error JSX not allowed in files with extension '.js' react/jsx-filename-extension
Wasn't eslint-config-airbnb configured react to support JSX already, as stated?如前所述,eslint-config-airbnb 是否已配置为支持 JSX?
What should be done to remove that error?应该怎么做才能消除该错误?
Either change your file extensions to .jsx
as mentioned or disable the jsx-filename-extension rule.将您的文件扩展名更改为
.jsx
或禁用jsx-filename-extension规则。 You can add the following to your config to allow .js
extensions for JSX.您可以将以下内容添加到您的配置中以允许 JSX 的
.js
扩展。
"rules": {
"react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
}
It's work for me.这对我有用。 hope to help you.
希望能帮到你。
disable jsx-filename-extension in .eslintrc
:在
.eslintrc
禁用 jsx-filename-extension :
"rules": { "react/jsx-filename-extension": [0] } “规则”:{“反应/jsx-文件名-扩展名”:[0]}
in webpack.config.js
:在
webpack.config.js
:
resolve: { extensions: ['.js', '.jsx'] },解析:{ 扩展名:['.js', '.jsx'] },
Call me a dummy if it does not work for you如果它不适合你,请叫我傻瓜
"rules": {
"react/jsx-filename-extension": [0],
"import/extensions": "off"
}
If you don't want to change your file extension, you can export a function that returns jsx, and then import and call that function in your js file.如果不想更改文件扩展名,可以导出返回 jsx 的函数,然后在 js 文件中导入并调用该函数。
// greeter.jsx
import React from 'react';
export default name => (
<div>
{`Hello, ${name}!`}
</div>
);
and then进而
// index.js
import ReactDOM from 'react-dom';
import greeter from './components/greeter';
const main = document.getElementsByTagName('main')[0];
ReactDOM.render(greeter('World'), main);
Following React documentation :以下React 文档:
Each JSX element is just syntactic sugar for calling React.createElement(component, props, ...children).
每个 JSX 元素只是调用 React.createElement(component, props, ...children) 的语法糖。
Following Airbnb's style guide :遵循Airbnb的风格指南:
Do not use React.createElement unless you're initializing the app from a file that is not JSX .
不要使用 React.createElement ,除非你从一个不是 JSX 的文件初始化应用程序。
You could do this:你可以这样做:
//index.js
const app = React.createElement(App);
ReactDOM.render(app, document.getElementById('root'));
To expound on Martin's answer, it seems that it is not possible, currently, to use JSX
in React Native.为了阐述Martin 的回答,目前似乎不可能在 React Native 中使用
JSX
。 A PR was created but reverted due to concerns about fragmentation and unknown consequences of having things like index.ios.jsx
. PR已创建,但由于担心碎片化和具有
index.ios.jsx
类的未知后果而index.ios.jsx
。 I'm not sure how AirBnb works around this or if they do, but I have used basically the same rules
block as Martin.我不确定 AirBnb 是如何解决这个问题的,或者他们是否这样做,但我使用了与 Martin 基本相同的
rules
块。
For future readers who want to write jsx in .js
files:对于未来想要在
.js
文件中编写 jsx 的读者:
npm i react react-dom
even if you think you're not writing react.npm i react react-dom
即使你认为你不是在写 react。npm i -D @babel/preset-react
npm i -D @babel/preset-react
plugins: ['@babel/plugin-transform-react-jsx']
plugins: ['@babel/plugin-transform-react-jsx']
module.rules
for /\.jsx?$/
files with babel-loader
(so you will need to install npm i -D babel-loader
too)babel-loader
为/\.jsx?$/
文件设置module.rules
(因此您也需要安装npm i -D babel-loader
)
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