Question

我有一个index.js文件，其中包含以下命名导出。

export Main from './Main/Main'

但是，eslint不喜欢这个并抛出错误

Parsing error: Unexpected token Main

我不确定为什么应用程序正常运行，我相信这是有效的语法。

我的.eslintrc文件看起来像这样

{
  env: {
    es6: true,
    browser: true
  },
  parserOptions: {
    ecmaVersion: 6,
    sourceType: "module",
    ecmaFeatures: {
      jsx: true,
      experimentalObjectRestSpread: true
    }
  },
  plugins: [
    "react",
  ],
  extends: ["eslint:recommended", "plugin:react/recommended", "standard"],
  "rules": {
    "comma-dangle" : [2, "always-multiline"],
    "semi": [2, "never"],
    "no-extra-semi": 2,
    "jsx-quotes": [2, "prefer-single"],
    "react/jsx-boolean-value": [2, "always"],
    "react/jsx-closing-bracket-location": [2, {selfClosing: "after-props", nonEmpty: "after-props"}],
    "react/jsx-curly-spacing": [2, "never", {"allowMultiline": false}],
    "react/jsx-max-props-per-line": [2, {maximum: 3}],
    "react/jsx-no-literals": 2,
    "react/sort-prop-types": 2,
    "react/self-closing-comp": 2,
    "react/sort-comp": 2
  },
}

Answer 1

想出来。这是一个实验性功能，所以我需要启用babel-eslint作为我的eslint解析器。

现在我的.eslintrc看起来像这样

{
  parser: "babel-eslint",
  env: {
    es6: true,
    browser: true
  },
  parserOptions: {
    ecmaVersion: 6,
    sourceType: "module",
    ecmaFeatures: {
      jsx: true,
      experimentalObjectRestSpread: true
    }
  },
  plugins: [
    "react",
  ],
  extends: ["eslint:recommended", "plugin:react/recommended", "standard"],
  "rules": {
    "comma-dangle" : [2, "always-multiline"],
    "semi": [2, "never"],
    "no-extra-semi": 2,
    "jsx-quotes": [2, "prefer-single"],
    "react/jsx-boolean-value": [2, "always"],
    "react/jsx-closing-bracket-location": [2, {selfClosing: "after-props", nonEmpty: "after-props"}],
    "react/jsx-curly-spacing": [2, "never", {"allowMultiline": false}],
    "react/jsx-max-props-per-line": [2, {maximum: 3}],
    "react/jsx-no-literals": 2,
    "react/sort-prop-types": 2,
    "react/self-closing-comp": 2,
    "react/sort-comp": 2
  },
}

Answer 2

因为我因为不同的原因得到了同样的错误，所以这就是我出错的地方：

如果你正在使用带有原子包开发的babel，那么babel会在每个文件的开头由use babel激活。

use babel，就像use strict一样，需要在文件的最开头！就像它前面的空间将停用它一样，然后js引擎绊倒你的导出语句，或类似的```意外的令牌导出````。

错：

use babel import { bla } from 'blub'

正确：

use babel import { bla } from 'blub'

eslint在命名导出时抛出解析错误意外标记

2 个答案: