Reactjs 如何使用React设置Eslint

我将webpack与React和Eslint一起使用，我已经在Eslint上设置了扩展，但是它仍然说，

“React”已定义，但从未使用过。eslintno未使用的变量

这是我的.eslintrc文件：

{
    "parser": "babel-eslint",
    "extends": ["eslint:recommended", "plugin:react/recommended", "airbnb", "prettier"],
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 2015
    },
    "env": {
        "browser": true,
        "node": true,
        "jest": true,
        "commonjs": true
    },
    "rules": {
        "react/jsx-uses-react": "error",
        "react/jsx-uses-vars": "error",
        "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
        "linebreak-style": "off",
        "no-undef": "off",
        "no-debugger": "off",
        "no-alert": "off",
        "indent": ["error", 4],
        "quotes": "off",
        "no-console": "off"
    }
}

React版本为

^17.0.1

babel eslint是

^10.1.0

eslint是

^7.14.0

---

eslint插件react是

^7.21.5

看起来它与文件中的实际JSX有关

您的配置在实际包含有效JSX的文件上运行良好：

// App.jsx
import React from 'react'; // 
const App = () => {
    return <div />; // JSX
}

export default App

// App.jsx
import React from 'react'; // 'React' is defined but never used 
const App = () => {
    return 1; // no JSX
}

export default App