vscode中使用eslint格式化代码

vscode中使用eslint格式化代码

在vscode的插件商店中下载eslint

eslint配置

配置初始化

在vscode中按F1调出命令行，打Create ESLint configuration，会出现交互式配置

说明：

• commonjs是使用module.exports和require的规范；

• semi是结尾分号

• indent是缩进

• JSX是js的拓展

关于vue的配置文件

module.exports = {
    root: true,
    parser: 'babel-eslint',
    parserOptions: {
      sourceType: 'module'
    },
    env: {
      browser: true,
      node: true,
      es6: true,
    },
    extends: 'eslint:recommended',
    // required to lint *.vue files
    plugins: [
      'html'
    ],
    // check if imports actually resolve
    'settings': {
      'import/resolver': {
        'webpack': {
          'config': 'build/webpack.base.conf.js'
        }
      }
    },
    // add your custom rules here
    //it is base on https://github.com/vuejs/eslint-config-vue
    'rules': {
      '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': [2, 'allow-null'],
      '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': [2, 'never'],
      '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': 2,
      'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
      'object-curly-spacing': [2, 'always', {
        objectsInObjects: false
      }],
      'array-bracket-spacing': [2, 'never']
    }
  }

vscode配置

文件 > 首选项 > 设置

"files.autoSave": "off",
    "eslint.validate": [
        "javascript",
        "javascriptreact",
        "html",
        {
            "language": "vue",
            "autoFix": true
        }
    ],
    "eslint.options": {
        "plugins": [
            "html"
        ]
    },
    // 保存时自动修复
    "eslint.autoFixOnSave": true