ESLint配置パラメータの紹介

10883 ワード

ESLintはJavaScript紅宝書のNichollas C.Zakasによって編纂され、2013年に第一版が発表された.NCZは車輪を繰り返し作るのではなく、実際にJSHintチームの応答が得られない場合の選択です.拡張可能、ルールごとに独立し、コードスタイルを内蔵しないことを理念として、lintツールを作成します.
ESLintは主に以下の特徴があります.標準規則にはすべてのJSLint、JSHintに存在する規則が含まれています.移転しやすいです.ルールの設定可能性が高い:「警告」、「エラー」の両方のerrorレベルを設定したり、直接無効にしたりできます.コードスタイル検出のルールを含みます.プラグインの拡張、カスタムルールをサポートします.
構成は以下の3つの方法でESLint:使用することができます.eslintrcファイル(JSONとYAMLの2つの文法に対応します.)package.jsonにeslintConfigプロファイルを追加する.コードファイルで直接定義します.
以下は.eslintrcファイルの例と説明です.

{  
  "env": {  
    "browser": true,  
    "node": true,  
    "commonjs": true  
  },  
  "ecmaFeatures": {  
    // lambda     
    "arrowFunctions": true,  
    //       
    "destructuring": true,  
    // class  
    "classes": true,  
    // http://es6.ruanyifeng.com/#docs/function#          
    "defaultParams": true,  
    //      ,    let const  
    "blockBindings": true,  
    //       ,           
    "modules": true,  
    //           ,          
    // http://es6.ruanyifeng.com/#docs/object#        
    "objectLiteralComputedProperties": true,  
    //               
    /*var o = { 
        method() { 
          return "Hello!"; 
        } 
     }; 
 
         
 
     var o = { 
       method: function() { 
         return "Hello!"; 
       } 
     }; 
    */  
    "objectLiteralShorthandMethods": true,  
    /* 
                 
      var foo = 'bar'; 
      var baz = {foo}; 
      baz // {foo: "bar"} 
 
      //     
      var baz = {foo: foo}; 
    */  
    "objectLiteralShorthandProperties": true,  
    // http://es6.ruanyifeng.com/#docs/function#rest    
    "restParams": true,  
    // http://es6.ruanyifeng.com/#docs/function#       
    "spread": true,  
    // http://es6.ruanyifeng.com/#docs/iterator#for---of    
    "forOf": true,  
    // http://es6.ruanyifeng.com/#docs/generator  
    "generators": true,  
    // http://es6.ruanyifeng.com/#docs/string#       
    "templateStrings": true,  
    "superInFunctions": true,  
    // http://es6.ruanyifeng.com/#docs/object#          
    "experimentalObjectRestSpread": true  
  },  
  
  "rules": {  
    //      set      ,    get  
    "accessor-pairs": 2,  
    //                (,  ), never  :[     ]        ,always  :[     ]          
    "array-bracket-spacing": [2, "never"],  
    //                         
    "block-scoped-var": 0,  
    // if while function    {   if    ,java  。  
    "brace-style": [2, "1tbs", { "allowSingleLine": true }],  
    //          
    "camelcase": 2,  
    //               , never  :        , always  :        ,  
    // always-multiline:         ,           
    "comma-dangle": [2, "never"],  
    //            
    "comma-spacing": [2, { "before": false, "after": true }],  
    //                   
    // http://eslint.org/docs/rules/comma-style  
    "comma-style": [2, "last"],  
    //       
    "complexity": [2,9],  
    //           ,[     ]         ,      never, always  
    "computed-property-spacing": [2,"never"],  
    //          ,TypeScript   ,     
    "consistent-return": 0,  
    //              this    ,      this           ,        
    // e.g [0,"that"]      var that = this. that         ,this      that        
    "consistent-this": 0,  
    //            super()        ,TypeScrip          
    "constructor-super": 0,  
    // if else while for do          { }  ,  :  
    //    multi               { }    
    //    multi-line               { }  ,               ,  
    //                            if      。if (foo) foo++; else doSomething();  
    //    multi-or-nest              { }  ,              ,                if      
    //    [2, "multi", "consistent"]        { }    
    //    default: [2, "all"]     { }    
    "curly": [2, "all"],  
    // switch    default  ,     // no default           
    "default-case": 2,  
    //   object.key   .    ,  :  
    //      property,'.'           
    //      object, '.'             
    "dot-location": [2, "property"],  
    //     .      
    //      : allowKeywords:true           ,    .       
    //                          false           ,     []      e.g [2, {"allowKeywords": false}]  
    //           allowPattern:                 ,    []    ,     .    e.g [2, {"allowPattern": "^[a-z]+(_[a-z]+)+$"}]  
    "dot-notation": [2, {"allowKeywords": true}],  
    //           
    "eol-last": 2,  
    //    ===    ==  
    "eqeqeq": [2, "allow-null"],  
    //              
    "func-names": 0,  
    //       ,  :  
    //    declaration:            ,function f(){} e.g [2, "declaration"]  
    //    expression:            ,var f = function() {}  e.g [2, "expression"]  
    //    allowArrowFunctions: declaration         。 e.g [2, "declaration", { "allowArrowFunctions": true }]  
    "func-style": 0,  
    "generator-star-spacing": [2, { "before": true, "after": true }],  
    "guard-for-in": 0,  
    "handle-callback-err": [2, "^(err|error)$" ],  
    "indent": [2, 2, { "SwitchCase": 1 }],  
    "key-spacing": [2, { "beforeColon": false, "afterColon": true }],  
    "linebreak-style": 0,  
    "lines-around-comment": 0,  
    "max-nested-callbacks": 0,  
    "new-cap": [2, { "newIsCap": true, "capIsNew": false }],  
    "new-parens": 2,  
    "newline-after-var": 0,  
    "no-alert": 0,  
    "no-array-constructor": 2,  
    "no-caller": 2,  
    "no-catch-shadow": 0,  
    "no-cond-assign": 2,  
    "no-console": 0,  
    "no-constant-condition": 0,  
    "no-continue": 0,  
    "no-control-regex": 2,  
    "no-debugger": 2,  
    "no-delete-var": 2,  
    "no-div-regex": 0,  
    "no-dupe-args": 2,  
    "no-dupe-keys": 2,  
    "no-duplicate-case": 2,  
    "no-else-return": 0,  
    "no-empty": 0,  
    "no-empty-character-class": 2,  
    "no-empty-label": 2,  
    "no-eq-null": 0,  
    "no-eval": 2,  
    "no-ex-assign": 2,  
    "no-extend-native": 2,  
    "no-extra-bind": 2,  
    "no-extra-boolean-cast": 2,  
    "no-extra-parens": 0,  
    "no-extra-semi": 0,  
    "no-fallthrough": 2,  
    "no-floating-decimal": 2,  
    "no-func-assign": 2,  
    "no-implied-eval": 2,  
    "no-inline-comments": 0,  
    "no-inner-declarations": [2, "functions"],  
    "no-invalid-regexp": 2,  
    "no-irregular-whitespace": 2,  
    "no-iterator": 2,  
    "no-label-var": 2,  
    "no-labels": 2,  
    "no-lone-blocks": 2,  
    "no-lonely-if": 0,  
    "no-loop-func": 0,  
    "no-mixed-requires": 0,  
    "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-nested-ternary": 0,  
    "no-new": 2,  
    "no-new-func": 0,  
    "no-new-object": 2,  
    "no-new-require": 2,  
    "no-new-wrappers": 2,  
    "no-obj-calls": 2,  
    "no-octal": 2,  
    "no-octal-escape": 2,  
    "no-param-reassign": 0,  
    "no-path-concat": 0,  
    "no-process-env": 0,  
    "no-process-exit": 0,  
    "no-proto": 0,  
    "no-redeclare": 2,  
    "no-regex-spaces": 2,  
    "no-restricted-modules": 0,  
    "no-return-assign": 2,  
    "no-script-url": 0,  
    "no-self-compare": 2,  
    "no-sequences": 2,  
    "no-shadow": 0,  
    "no-shadow-restricted-names": 2,  
    "no-spaced-func": 2,  
    "no-sparse-arrays": 2,  
    "no-sync": 0,  
    "no-ternary": 0,  
    "no-this-before-super": 2,  
    "no-throw-literal": 2,  
    "no-trailing-spaces": 2,  
    "no-undef": 2,  
    "no-undef-init": 2,  
    "no-undefined": 0,  
    "no-underscore-dangle": 0,  
    "no-unexpected-multiline": 2,  
    "no-unneeded-ternary": 2,  
    "no-unreachable": 2,  
    "no-unused-expressions": 0,  
    "no-unused-vars": [2, { "vars": "all", "args": "none" }],  
    "no-use-before-define": 0,  
    "no-var": 0,  
    "no-void": 0,  
    "no-warning-comments": 0,  
    "no-with": 2,  
    "object-curly-spacing": 0,  
    "object-shorthand": 0,  
    "one-var": [2, { "initialized": "never" }],  
    "operator-assignment": 0,  
    "operator-linebreak": [2, "after", { "overrides": { "?": "before", ":": "before" } }],  
    "padded-blocks": 0,  
    "prefer-const": 0,  
    "quote-props": 0,  
    "quotes": [2, "single", "avoid-escape"],  
    "radix": 2,  
    "semi": [2, "never"],  
    "semi-spacing": 0,  
    "sort-vars": 0,  
    "space-after-keywords": [2, "always"],  
    "space-before-blocks": [2, "always"],  
    "space-before-function-paren": [2, "always"],  
    "space-in-parens": [2, "never"],  
    "space-infix-ops": 2,  
    "space-return-throw-case": 2,  
    "space-unary-ops": [2, { "words": true, "nonwords": false }],  
    "spaced-comment": [2, "always", { "markers": ["global", "globals", "eslint", "eslint-disable", "*package", "!"] }],  
    "strict": 0,  
    "use-isnan": 2,  
    "valid-jsdoc": 0,  
    "valid-typeof": 2,  
    "vars-on-top": 0,  
    "wrap-iife": [2, "any"],  
    "wrap-regex": 0,  
    "yoda": [2, "never"]  
  }  
}