Question

我有一个使用WebPack的项目设置来使用ESLint，我想将ES7用于内联绑定运算符::。目前我收到的解析错误如下所示

/Users/ryanvice/Documents/Code/pluralsight-redux-starter/src/components/project/ProjectsPage.js (1/0)
  ✖  7:27  Parsing error: Unexpected token :

/Users/ryanvice/Documents/Code/pluralsight-redux-starter/src/routes.js (2/2)
  ✖  6:26  Parse errors in imported module './components/project/ProjectsPage': Unexpected token : (7:27)  import/namespace
  ✖  6:26  Parse errors in imported module './components/project/ProjectsPage': Unexpected token : (7:27)  import/default
  !  6:26  Parse errors in imported module './components/project/ProjectsPage': Unexpected token : (7:27)  import/no-named-as-default
  !  6:26  Parse errors in imported module './components/project/ProjectsPage': Unexpected token : (7:27)  import/no-named-as-default-member

✖ 3 errors ! 2 warnings (4:45:40 PM)

使用包含.eslintrc

的以下"ecmaVersion": 7配置

{
  "extends": [
    "eslint:recommended",
    "plugin:import/errors",
    "plugin:import/warnings"
  ],
  "plugins": [
    "react"
  ],
  "parserOptions": {
    "ecmaVersion": 7,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "env": {
    "es6": true,
    "browser": true,
    "node": true,
    "jquery": true,
    "mocha": true
  },
  "rules": {
    "quotes": 0,
    "no-console": 1,
    "no-debugger": 1,
    "no-var": 1,
    "semi": [1, "always"],
    "no-trailing-spaces": 0,
    "eol-last": 0,
    "no-unused-vars": 0,
    "no-underscore-dangle": 0,
    "no-alert": 0,
    "no-lone-blocks": 0,
    "jsx-quotes": 1,
    "react/display-name": [ 1, {"ignoreTranspilerName": false }],
    "react/forbid-prop-types": [1, {"forbid": ["any"]}],
    "react/jsx-boolean-value": 1,
    "react/jsx-closing-bracket-location": 0,
    "react/jsx-curly-spacing": 1,
    "react/jsx-indent-props": 0,
    "react/jsx-key": 1,
    "react/jsx-max-props-per-line": 0,
    "react/jsx-no-bind": 1,
    "react/jsx-no-duplicate-props": 1,
    "react/jsx-no-literals": 0,
    "react/jsx-no-undef": 1,
    "react/jsx-pascal-case": 1,
    "react/jsx-sort-prop-types": 0,
    "react/jsx-sort-props": 0,
    "react/jsx-uses-react": 1,
    "react/jsx-uses-vars": 1,
    "react/no-danger": 1,
    "react/no-did-mount-set-state": 1,
    "react/no-did-update-set-state": 1,
    "react/no-direct-mutation-state": 1,
    "react/no-multi-comp": 1,
    "react/no-set-state": 0,
    "react/no-unknown-property": 1,
    "react/prefer-es6-class": 1,
    "react/prop-types": 1,
    "react/react-in-jsx-scope": 1,
    "react/require-extension": 1,
    "react/self-closing-comp": 1,
    "react/sort-comp": 1,
    "react/wrap-multilines": 1
  }
}

Answer 1

假设您使用的是Babel，您可能希望使用babel-eslint作为ESLint解析器（"parser": "babel-eslint",）。

Answer 2

将此添加到您的.eslintrc.json：

"parserOptions": {
    "ecmaVersion": 2016
},

来源：https://eslint.org/docs/user-guide/configuring#specifying-parser-options

ecmaVersion-设置为3、5（默认），6、7、8、9或10，以指定要使用的ECMAScript语法的版本。您还可以设置为2015（等于6），2016（等于7），2017（等于8），2018（等于9）或2019（等于10）来使用基于年份的命名。

如何在ESLint中支持ES7

2 个答案: