.eslintrc.js configuration description

Rule level

• "off" perhaps 0, Don't enable this rule

• "warn" perhaps 1, There will be a warning if there is a problem

• "error" perhaps 2, Errors will be reported in case of problems

close ESLint testing

/* eslint-disable */
console.log('hello world');
/* eslint-enable */

To configure 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': 'any',
        'normal': 'any',
        'component': 'any'
      },
      'svg': 'any',
      'math': 'any'
    }],
    'vue/singleline-html-element-content-newline': 'off',
    'vue/no-parsing-error': [2, {
     'invalid-first-character-of-tag-name': false }],
    'vue/no-use-v-if-with-v-for': 'off',
    'vue/multiline-html-element-content-newline': 'off',
    'vue/name-property-casing': [0, 'PascalCase'],
    'vue/html-closing-bracket-newline': [0, {
    
      'singleline': 'never',
      'multiline': 'always'
    }],
    'vue/no-side-effects-in-computed-properties': 0,
    'accessor-pairs': 2, // Use in objects getter/setter
    'arrow-spacing': [2, {
    
      'before': true,
      'after': true
    }], //=> Before / Back brackets 
    'block-spacing': [2, 'always'], // Whether the block needs spaces 
    // if while function  hinder { Must be with if On the same line ,java style .
    'brace-style': [2, '1tbs', {
    
      'allowSingleLine': true
    }],
    // Name the hump by force 
    'camelcase': [0, {
    
      'properties': 'always'
    }],
    //  Array and object key value pairs last comma , never Parameters ： No comma at the end , always Parameters ： Must have a comma at the end ,
    // always-multiline： Multiline mode must have commas , Single line mode cannot have comma 
    'comma-dangle': [2, 'never'],
    //  Controls the space before and after commas 
    'comma-spacing': [2, {
    
      'before': false,
      'after': true
    }],
    'comma-style': [2, 'last'], //  Controls whether commas appear at the end of a line or at the beginning of a line 
    //  Force to use... In subclass constructors super() Call parent constructor ,TypeScrip The compiler will also prompt 
    'constructor-super': 2,
    //  mandatory object.key  in  .  The location of , Parameters :
    // property,'.' The number should be on the same line as the attribute 
    // object, '.'  The number should be on the same line as the object name 
    'dot-location': [2, 'property'],
    'eol-last': 2, //  Force a line break at the end of the file 
    'eqeqeq': [2, 'allow-null'], //  Use  ===  replace  ==
    'generator-star-spacing': 0, // Generator function * Before and after the space 
    'handle-callback-err': 0, //nodejs  Handling errors 
    'indent': [2, 2, {
     // Indent style 
      'SwitchCase': 1
    }],
    // JSX  Double quotation marks or single quotation marks are used consistently in attributes 
    'jsx-quotes': [2, 'prefer-single'],
    // Before and after the colon in the object literal 
    'key-spacing': [2, {
    
      'beforeColon': false,
      'afterColon': true
    }],
    'keyword-spacing': [2, {
    
      'before': true,
      'after': true
    }],
    // Function names must be capitalized with new Way to call , The first line must be lowercase without new Way to call 
    'new-cap': [2, {
    
      'newIsCap': true,
      'capIsNew': false
    }],
    'new-parens': 2, //new You have to use parentheses 
    'no-array-constructor': 2, // Array constructors are prohibited 
    'no-caller': 2, // No use arguments.caller or arguments.callee
    'no-console': process.env.NODE_ENV === 'production' ? 2 : 0, // No use console
    'no-class-assign': 2, // It is forbidden to assign a value to a class 
    'no-cond-assign': 2, // Prohibit the use of assignment statements in conditional expressions 
    'no-const-assign': 2, // No modification const Declared variables 
    'no-control-regex': 0, // Prohibit the use of control characters in regular expressions 
    'no-delete-var': 2, // Not right var Declared variables use delete The operator 
    'no-dupe-args': 2, // Function arguments cannot be repeated 
    'no-dupe-class-members': 2, // Duplicate declarations in classes are not allowed 
    'no-dupe-keys': 2, // Duplicate keys are not allowed when creating object literals  {a:1,a:1}
    'no-duplicate-case': 2, //switch Medium case The label cannot be repeated 
    'no-empty-character-class': 0, // In regular expressions [] The content cannot be empty 
    'no-empty-pattern': 0,
    'no-eval': 0, // No use eval
    'no-ex-assign': 2, // No giving catch Exception parameter assignment in statement 
    'no-extend-native': 2, // No extension native object 
    'no-extra-bind': 2, // Disable unnecessary function binding 
    'no-extra-boolean-cast': 2, // Prohibit unnecessary bool transformation 
    'no-extra-parens': [2, 'functions'], // No unnecessary brackets 
    'no-fallthrough': 2, // prohibit switch through 
    'no-floating-decimal': 2, // Do not omit... From floating-point numbers 0 .5 3.
    'no-func-assign': 2, // Prohibit duplicate function declarations 
    'no-implied-eval': 2, // The use of implicit eval
    'no-inner-declarations': [2, 'functions'], // Prohibit the use of declarations... In block statements （ Variables or functions ）
    'no-invalid-regexp': 2, // Disable invalid regular expressions 
    'no-irregular-whitespace': 2, // Can't have irregular spaces 
    'no-iterator': 2, // No use __iterator__  attribute 
    'no-label-var': 2, //label A name cannot be associated with var Declared variable names are the same 
    'no-labels': [2, {
     // No label statement 
      'allowLoop': false,
      'allowSwitch': false
    }],
    'no-lone-blocks': 2, // No unnecessary nesting of blocks 
    'no-mixed-spaces-and-tabs': 2, // Do not mix tab And Spaces 
    'no-multi-spaces': 2, // Do not use extra Spaces 
    'no-multi-str': 2, // String cannot be used \ Line break 
    'no-multiple-empty-lines': [0, {
    
      'max': 1
    }], // No more than 1 That's ok 
    'no-native-reassign': 2, // Can not rewrite native object 
    'no-negated-in-lhs': 2, //in  The left side of the operator cannot have !
    'no-new-object': 2, // No use new Object()
    'no-new-require': 2, // No use new require
    'no-new-symbol': 2, // No use new symbol
    'no-new-wrappers': 2, // No use new Create a packaging instance ,new String new Boolean new Number
    'no-obj-calls': 0, // Cannot call built-in global object , such as Math() JSON()
    'no-octal': 2, // Octal numbers are not allowed 
    'no-octal-escape': 2, // Octal escape sequences are prohibited 
    'no-path-concat': 2, //node Cannot be used in __dirname or __filename Do path splicing 
    'no-proto': 2, // No use __proto__ attribute 
    'no-redeclare': 2, // Do not declare variables repeatedly 
    'no-regex-spaces': 2, // Prohibit using multiple spaces in regular expression literals  /foo bar/
    'no-return-assign': [2, 'except-parens'], //return  There cannot be an assignment expression in a statement 
    'no-self-assign': 2, // Self distribution 
    'no-self-compare': 2, // You can't compare yourself 
    'no-sequences': 2, // The comma operator... Is prohibited 
    'no-shadow-restricted-names': 2, // The restriction identifier specified in strict mode cannot be used as the variable name when declaring 
    'no-spaced-func': 2, // When a function is called   The function name and () There must be no space between them 
    'no-sparse-arrays': 2, // Disallow sparse arrays , [1,,2]
    'no-this-before-super': 2, // Calling super() You can't use this or super
    'no-throw-literal': 2, // Don't throw literal errors  throw "error";
    'no-trailing-spaces': 0, // There should be no spaces at the end of a line 
    'no-undef': 2, // Can't have undefined variables 
    'no-undef-init': 2, // Variable initialization cannot be assigned directly to undefined
    'no-unexpected-multiline': 0, // Avoid multiline expressions 
    'no-unmodified-loop-condition': 0, // Check whether the reference is modified in the loop 
    'no-unneeded-ternary': 0, // No unnecessary nesting  var isYes = answer === 1 ? true : false;
    'no-unreachable': 2, // There can't be code that can't be executed 
    'no-unsafe-finally': 0,
    'no-unused-vars': [2, {
    
      'vars': 'all',
      'args': 'none'
    }], // Cannot have variables or parameters that are not used after declaration 
    'no-useless-call': 2, // Prohibit unnecessary call and apply
    'no-useless-computed-key': 0, // There is no need to use calculated attributes with text 
    'no-useless-constructor': 2, // Class constructors that can be safely removed without changing the way classes work 
    'no-useless-escape': 0,
    'no-whitespace-before-property': 0,
    'no-with': 2, // Ban with
    'one-var': 0, // A continuous statement 
    'operator-linebreak': [2, 'after', {
    
      'overrides': {
    
        '?': 'before',
        ':': 'before'
      }
    }], // Is the operator at the end of the line or at the beginning of the line 
    'padded-blocks': 0, // Whether the first and last line of a block statement should be empty 
    'quotes': [2, 'single', {
    
      'avoidEscape': true,
      'allowTemplateLiterals': true
    }], // Quote type  `` "" ''
    'semi': [2, 'never'], // Statement forces the semicolon to end 
    'semi-spacing': [2, {
    
      'before': false,
      'after': true
    }], // Space before and after semicolon 
    'space-before-blocks': [2, 'always'], // A block that doesn't start with a new line { Do you want a space in front of me 
    'space-before-function-paren': [2, 'never'], // Do you want spaces before parentheses when defining functions 
    'space-in-parens': [2, 'never'], // Do you want spaces in parentheses 
    'space-infix-ops': 2, // Do you want spaces around infix operators 
    'space-unary-ops': [2, {
    
      'words': true,
      'nonwords': false
    }], // Before unary operator / Would you like to add a space after 
    'spaced-comment': 0, // The annotation style should not have spaces or anything 
    'template-curly-spacing': [2, 'never'],
    'use-isnan': 2, // Do not use... When comparing NaN, Only use isNaN()
    'valid-typeof': 2, // Must use legal typeof Value 
    'wrap-iife': [2, 'any'], // Execute the curly bracket style of the function expression immediately 
    'yield-star-spacing': 0,
    'yoda': [2, 'never'], // Prohibition of Yoda conditions 
    'prefer-const': 2, // The preferred const
    'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0, // No use debugger
    'object-curly-spacing': [2, 'always', {
    
      objectsInObjects: false
    }], // Whether unnecessary spaces are allowed in braces 
    'array-bracket-spacing': [2, 'never'] // Whether to allow extra space in non empty array 
  }
}