vue專案中使用eslint

1、安裝
@vue/cli-plugin-eslint
babel-eslint
eslint
eslint-plugin-vue
2.專案根目錄新增.eslintrc.js

module.exports = {
  root: true,
  parserOptions: {
    parser: 'babel-eslint',
    sourceType: 'module'
  },
  env: {
    browser: true,
    node: true,
    es6: true
  },
  extends: ['plugin:vue/recommended', 'eslint:recommended'],

  // add your custom rules here
  // it is base on https://github.com/vuejs/eslint-config-vue
  rules: {
    'vue/max-attributes-per-line': [
      2,
      {
        singleline: 10,
        multiline: {
          max: 1,
          allowFirstLine: false
        }
      }
    ],
    'vue/html-self-closing': ['error', {
      'html': {
        'void': 'never',
        'normal': 'never',
        'component': 'never'
      },
      'svg': 'always',
      'math': 'always'
    }],
    'vue/singleline-html-element-content-newline': 'off',
    'vue/multiline-html-element-content-newline': 'off',
    'vue/name-property-casing': ['error', 'PascalCase'],
    'vue/no-v-html': 'off',
    'accessor-pairs': 2,
    'arrow-spacing': [
      2,
      {
        before: true,
        after: true
      }
    ],
    'block-spacing': [2, 'always'],
    'brace-style': [
      2,
      '1tbs',
      {
        allowSingleLine: true
      }
    ],
    camelcase: [
      0,
      {
        properties: 'always'
      }
    ],
    'comma-dangle': [2, 'never'],
    'comma-spacing': [
      2,
      {
        before: false,
        after: true
      }
    ],
    'comma-style': [2, 'last'],
    'constructor-super': 2,
    curly: [2, 'multi-line'],
    'dot-location': [2, 'property'],
    'eol-last': 2,
    eqeqeq: ['error', 'always', { null: 'ignore' }],
    'generator-star-spacing': [
      2,
      {
        before: true,
        after: true
      }
    ],
    'handle-callback-err': [2, '^(err|error)$'],
    indent: [
      2,
      2,
      {
        SwitchCase: 1
      }
    ],
    'jsx-quotes': [2, 'prefer-single'],
    'key-spacing': [
      2,
      {
        beforeColon: false,
        afterColon: true
      }
    ],
    'keyword-spacing': [
      2,
      {
        before: true,
        after: true
      }
    ],
    'new-cap': [
      2,
      {
        newIsCap: true,
        capIsNew: false
      }
    ],
    'new-parens': 2,
    'no-array-constructor': 2,
    'no-caller': 2,
    'no-console': 'off',
    'no-class-assign': 2,
    'no-cond-assign': 2,
    'no-const-assign': 2,
    'no-control-regex': 0,
    'no-delete-var': 2,
    'no-dupe-args': 2,
    'no-dupe-class-members': 2,
    'no-dupe-keys': 2,
    'no-duplicate-case': 2,
    'no-empty-character-class': 2,
    'no-empty-pattern': 2,
    'no-eval': 2,
    'no-ex-assign': 2,
    'no-extend-native': 2,
    'no-extra-bind': 2,
    'no-extra-boolean-cast': 2,
    'no-extra-parens': [2, 'functions'],
    'no-fallthrough': 2,
    'no-floating-decimal': 2,
    'no-func-assign': 2,
    'no-implied-eval': 2,
    'no-inner-declarations': [2, 'functions'],
    'no-invalid-regexp': 2,
    'no-irregular-whitespace': 2,
    'no-iterator': 2,
    'no-label-var': 2,
    'no-labels': [
      2,
      {
        allowLoop: false,
        allowSwitch: false
      }
    ],
    'no-lone-blocks': 2,
    'no-mixed-spaces-and-tabs': 2,
    'no-multi-spaces': 2,
    'no-multi-str': 2,
    'no-multiple-empty-lines': [
      2,
      {
        max: 1
      }
    ],
    'no-native-reassign': 2,
    'no-negated-in-lhs': 2,
    'no-new-object': 2,
    'no-new-require': 2,
    'no-new-symbol': 2,
    'no-new-wrappers': 2,
    'no-obj-calls': 2,
    'no-octal': 2,
    'no-octal-escape': 2,
    'no-path-concat': 2,
    'no-proto': 2,
    'no-redeclare': 2,
    'no-regex-spaces': 2,
    'no-return-assign': [2, 'except-parens'],
    'no-self-assign': 2,
    'no-self-compare': 2,
    'no-sequences': 2,
    'no-shadow-restricted-names': 2,
    'no-spaced-func': 2,
    'no-sparse-arrays': 2,
    'no-this-before-super': 2,
    'no-throw-literal': 2,
    'no-trailing-spaces': 2,
    'no-undef': 2,
    'no-undef-init': 2,
    'no-unexpected-multiline': 2,
    'no-unmodified-loop-condition': 2,
    'no-unneeded-ternary': [
      2,
      {
        defaultAssignment: false
      }
    ],
    'no-unreachable': 2,
    'no-unsafe-finally': 2,
    'no-unused-vars': [
      2,
      {
        vars: 'all',
        args: 'none'
      }
    ],
    'no-useless-call': 2,
    'no-useless-computed-key': 2,
    'no-useless-constructor': 2,
    'no-useless-escape': 0,
    'no-whitespace-before-property': 2,
    'no-with': 2,
    'one-var': [
      2,
      {
        initialized: 'never'
      }
    ],
    'operator-linebreak': [
      2,
      'after',
      {
        overrides: {
          '?': 'before',
          ':': 'before'
        }
      }
    ],
    'padded-blocks': [2, 'never'],
    quotes: [
      2,
      'single',
      {
        avoidEscape: true,
        allowTemplateLiterals: true
      }
    ],
    semi: [2, 'never'],
    'semi-spacing': [
      2,
      {
        before: false,
        after: true
      }
    ],
    'space-before-blocks': [2, 'always'],
    'space-before-function-paren': 0,
    'space-in-parens': [2, 'never'],
    'space-infix-ops': 2,
    'space-unary-ops': [
      2,
      {
        words: true,
        nonwords: false
      }
    ],
    'spaced-comment': [
      2,
      'always',
      {
        markers: [
          'global',
          'globals',
          'eslint',
          'eslint-disable',
          '*package',
          '!',
          ','
        ]
      }
    ],
    'template-curly-spacing': [2, 'never'],
    'use-isnan': 2,
    'valid-typeof': 2,
    'wrap-iife': [2, 'any'],
    'yield-star-spacing': [2, 'both'],
    yoda: [2, 'never'],
    'prefer-const': 0,
    'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
    'object-curly-spacing': [
      2,
      'always',
      {
        objectsInObjects: false
      }
    ],
    'array-bracket-spacing': [2, 'never']
  }
}

這些是目前我的專案中使用到的配置項，需要別的配置項可以去eslint官網查詢
3、vscode設定的setting.json加入程式碼

{
  "workbench.iconTheme": "vscode-icons-mac",
  "workbench.colorTheme": "Dracula",
  "files.exclude": {
    "**/.DS_Store": true,
    "**/.git": true,
    "**/.hg": true,
    "**/.svn": true,
    "**/bower_components": true,
    "**/CVS": true,
    "**/tmp": true
  },
  "workbench.activityBar.visible": true,
  "editor.minimap.enabled": false,
  "editor.tabSize": 2,
  "[json]": {
    "editor.defaultFormatter": "vscode.json-language-features"
  },
  "files.watcherExclude": {
    "**/.git/objects/**": true,
    "**/.git/subtree-cache/**": true,
    // "**/node_modules/**": true,
    "**/tmp/**": true,
    "**/bower_components/**": true,
    "**/dist/**": true
  },
  "[javascript]": {
    "editor.defaultFormatter": "HookyQR.beautify"
  },
  "diffEditor.ignoreTrimWhitespace": false,
  "[jsonc]": {
    "editor.defaultFormatter": "vscode.json-language-features"
  },
  "files.associations": {
    "*.cjson": "jsonc",
    "*.wxss": "css",
    "*.wxs": "javascript",
    "*.js": "javascriptreact"
  },
  "[javascriptreact]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
  },
  "[vue]": {
    "editor.defaultFormatter": "octref.vetur"
  },
  "[html]": {
    "editor.defaultFormatter": "vscode.html-language-features"
  },
  "git.confirmSync": false,
  "git.enableSmartCommit": true,
  "emmet.includeLanguages": {
    "wxml": "html"
  },
  "minapp-vscode.disableAutoConfig": true,
  "css.fileExtensions": [
    "css",
    "scss"
  ],
  "fileheader.customMade": {
    "Author": "zxc",
    "Date": "", // 設定後預設設定檔案生成時間
    "LastEditTime": "", // 設定後，儲存檔案更改預設更新最後編輯時間
    "LastEditors": "zxc", // 設定後，儲存檔案更改預設更新最後編輯人
    "Description": "",
  },
  "fileheader.cursorMode": {
    "Author": "zxc",
    "Date": "", // 設定後預設設定檔案生成時間
    "func": "",
  },
  // "editor.fontLigatures": null,
  "search.followSymlinks": false,
  // "workbench.settings.editor": "json",
  "[typescript]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
  },
  "[typescriptreact]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
  },
  "editor.suggestSelection": "first",
  "vsintellicode.modify.editor.suggestSelection": "automaticallyOverrodeDefaultValue",
  "[less]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
  },
  "tslint.autoFixOnSave": true,
  "timeline.excludeSources": [
    "git-history"
  ],
  "gitlens.hovers.currentLine.over": "line",
  "tabnine.experimentalAutoImports": true,
  "settingsSync.ignoredSettings": [],
  // "eslint.autoFixOnSave": true,
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
  "files.autoSave": "off",
  "window.zoomLevel": 0,
  "cssrem.rootFontSize": 100,
  "html.format.contentUnformatted": "",
  "vetur.format.defaultFormatterOptions": {
    "validation": {
      "template": false
    },
    "js-beautify-html": {
      "wrap_attributes": "force-expand-multiline"
    },
    "prettyhtml": {
      "printWidth": 100,
      "singleQuote": false,
      "wrapAttributes": false,
      "sortAttributes": false
    }
  },
  "vetur.validation.template": false,
  "todo-tree.tree.showScanModeButton": false,
  "eslint.codeAction.showDocumentation": {
    "enable": true
  },
  "search.exclude": {
    "**/node_modules": false
  }
}

就可以使用拉