jshint配置详解

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一、基础配置文件

• 1、参数文件配置 （.jshintrc）

    {
    // JSHint 默认配置文件
    // [点击查看详情](http://jshint.com/docs/)
  
    		"maxerr": 50,// {int} 最大数量错误停止
  
    // Enforcing
    		"bitwise": true,// true: 停止位运算符 (&, |, ^, etc.)
    		"camelcase" : false,// true: 标志使用驼峰命名法
    		"curly"  : true,// true: 块或范围需要{}
    		"eqeqeq" : true,// true:  (===) 使用恒等来比较
    		"forin"  : true,// true: 在 for..in 循环中过滤 obj.hasOwnProperty()
    		"freeze" : true,// true: prohibits overwriting prototypes of native objects such as Array, Date etc.
    		"immed"  : false,// true: Require immediate invocations to be wrapped in parens e.g. `(function () { } ());`
    		"latedef": false,// true: Require variables/functions to be defined before being used
    		"newcap" : false,// true: Require capitalization of all constructor functions e.g. `new F()`
    		"noarg"  : true,// true: Prohibit use of `arguments.caller` and `arguments.callee`
    		"noempty": true,// true: Prohibit use of empty blocks
    		"nonbsp" : true,// true: Prohibit "non-breaking whitespace" characters.
    		"nonew"  : false,// true: Prohibit use of constructors for side-effects (without assignment)
    		"plusplus"  : false,// true: Prohibit use of `++` and `--`
    		"quotmark"  : false,// Quotation mark consistency:
    											 //   false: do nothing (default)
    											 //   true : ensure whatever is used is consistent
    											 //   "single" : require single quotes
    											 //   "double" : require double quotes
    		"undef"  : true,// true: Require all non-global variables to be declared (prevents global leaks)
    		"unused" : true,// Unused variables:
    											 //   true : all variables, last function parameter
    											 //   "vars": all variables only
    											 //   "strict" : all variables, all function parameters
    		"strict" : true,// true: Requires all functions run in ES5 Strict Mode
    		"maxparams" : false,// {int} Max number of formal params allowed per function
    		"maxdepth"  : false,// {int} Max depth of nested blocks (within functions)
    		"maxstatements" : false,// {int} Max number statements per function
    		"maxcomplexity" : false,// {int} Max cyclomatic complexity per function
    		"maxlen" : false,// {int} Max number of characters per line
    		"varstmt": false,// true: Disallow any var statements. Only `let` and `const` are allowed.
  
    // Relaxing
    		"asi"    : false,// true: Tolerate Automatic Semicolon Insertion (no semicolons)
    		"boss"   : false,// true: Tolerate assignments where comparisons would be expected
    		"debug"  : false,// true: Allow debugger statements e.g. browser breakpoints.
    		"eqnull" : false,// true: Tolerate use of `== null`
    		"esversion" : 5,// {int} Specify the ECMAScript version to which the code must adhere.
    		"moz"    : false,// true: Allow Mozilla specific syntax (extends and overrides esnext features)
    												// (ex: `for each`, multiple try/catch, function expression…)
    		"evil"   : false,// true: Tolerate use of `eval` and `new Function()`
    		"expr"   : false,// true: Tolerate `ExpressionStatement` as Programs
    		"funcscope" : false,// true: Tolerate defining variables inside control statements
    		"globalstrict"  : false,// true: Allow global "use strict" (also enables 'strict')
    		"iterator"  : false,// true: Tolerate using the `__iterator__` property
    		"lastsemic" : false,// true: Tolerate omitting a semicolon for the last statement of a 1-line block
    		"laxbreak"  : false,// true: Tolerate possibly unsafe line breakings
    		"laxcomma"  : false,// true: Tolerate comma-first style coding
    		"loopfunc"  : false,// true: Tolerate functions being defined in loops
    		"multistr"  : false,// true: Tolerate multi-line strings
    		"noyield": false,// true: Tolerate generator functions with no yield statement in them.
    		"notypeof"  : false,// true: Tolerate invalid typeof operator values
    		"proto"  : false,// true: Tolerate using the `__proto__` property
    		"scripturl" : false,// true: Tolerate script-targeted URLs
    		"shadow" : false,// true: Allows re-define variables later in code e.g. `var x=1; x=2;`
    		"sub"    : false,// true: Tolerate using `[]` notation when it can still be expressed in dot notation
    		"supernew"  : false,// true: Tolerate `new function () { ... };` and `new Object;`
    		"validthis" : false,// true: Tolerate using this in a non-constructor function
  
    // Environments
    		"browser": true,// Web Browser (window, document, etc)
    		"browserify": false,// Browserify (node.js code in the browser)
    		"couch"  : false,// CouchDB
    		"devel"  : true,// Development/debugging (alert, confirm, etc)
    		"dojo"   : false,// Dojo Toolkit
    		"jasmine": false,// Jasmine
    		"jquery" : false,// jQuery
    		"mocha"  : true,// Mocha
    		"mootools"  : false,// MooTools
    		"node"   : false,// Node.js
    		"nonstandard": false,// Widely adopted globals (escape, unescape, etc)
    		"phantom": false,// PhantomJS
    		"prototypejs": false,// Prototype and Scriptaculous
    		"qunit"  : false,// QUnit
    		"rhino"  : false,// Rhino
    		"shelljs": false,// ShellJS
    		"typed"  : false,// Globals for typed array constructions
    		"worker" : false,// Web Workers
    		"wsh"    : false,// Windows Scripting Host
    		"yui"    : false,// Yahoo User Interface
  
    // Custom Globals
    		"globals": {}   // additional predefined global variables
    }
  

• 2、排除文件或正则匹配多个文件或目录.jshintignore

    	ignored.js
    	another.js
    	ignoreimmediatechildren/*.js
    	ignoreincludingsubdirectories/**