JSHint.json

{
   // Enforcing
    "bitwise"        : true, // true: Prohibit bitwise operators (&, |, ^, etc.)
    "camelcase"      : false, // true: <Deprecated> Identifiers must be in camelCase
    "curly"          : false, // true: Require {} for every new block or scope
    "eqeqeq"         : true, // true: Require triple equals (===) for comparison
    "esversion"      : 3, // {int}: Specify ECMAScript version to which code must adhere: 3 (old browsers, 5, 6)
    "forin"          : true, // true: Require filtering for..in loops with obj.hasOwnProperty()
    "freeze"         : true, // true: Prohibits overwriting prototypes of native objects such as Array, Date and so on
    "funcscope"      : false, // true: Suppress warnings about declaring variables inside blocks while accessing later from outside e.g. 'function foo() { var bar = 0; }; bar++;'
    "futurehostile"  : true, // true: Enables warnings about use of identifiers which are defined in future versions of JavaScript
    "globals"        : {}, // white list of global variables that are not formally defined in source code e.g. { "foo": true }
    "immed"          : false, // true: <Deprecated> Require immediate invocations to be wrapped in parens e.g. '(function () { } ());'
    "indent"         : 2, // {int} <Deprecated> Number of spaces to use for indentation
    "iterator"       : false, // true: Tolerate using '__iterator__' property
    "latedef"        : false, // true: Prohibits use of functions/variable before being defined
    "maxcomplexity"  : false, // {int} Max cyclomatic complexity per function
    "maxdepth"       : false, // {int} Max depth of nested blocks (within functions)
    "maxerr"         : 256, // {int} Maximum error before stopping
    "maxlen"         : false, // {int} <Deprecated> Maximum length of a line
    "maxparams"      : false, // {int} Max number of formal params allowed per function
    "maxstatements"  : false, // {int} Max number statements per function
    "newcap"         : true, // true: <Deprecated> Require capitalization of all constructor functions e.g. 'new F()'
    "noarg"          : true, // true: Prohibit use of 'arguments.caller' and 'arguments.callee'
    "nocomma"        : true, // true: Prohibits use of comma operator
    "noempty"        : true, // true: <Deprecated> Prohibit use of empty blocks
    "nonbsp"         : true, // true: Warns about "non-breaking whitespace" characters (can break non-UTF8 pages)
    "nonew"          : true, // true: Prohibit use of constructors for side-effects (without assignment)
    "notypeof"       : false, // true: Suppress warnings about invalid typeof operator values
    "predef"         : [], // [{string}]: Variables to be considered as implicitly defined in environment, prefix name with a '-' to remove
    "quotmark"       : true, // <Deprecated> Quotation mark consistency:
                             // false: do nothing (default)
                             // true: ensure whatever is used is consistent
                             // "single": require single quotes
                             // "double": require double quotes
    "shadow"         : false, // Warn about variable shadowing i.e. re-declaring variables later e.g. 'var x=1; var x=2;'
                              // true: allow variable shadowing
                              // false: same as inner
                              // "inner": check for variables defined in same scope only
                              // "outer": check for variables defined in outer scopes as well
    "singleGroups"   : false, // true: Prohibits use of grouping operator when not strictly required
    "strict"         : false, // Requires code to run in ECMAScript 5's strict mode
                              // true: there must be "use strict"; directive at function level
                              // false: disable warnings about strict mode
                              // "global": there must be "use strict"; directive at global level
                              // "implied": check code as if there is "use strict"; directive
    "trailing"       : true, // true: Prohibit trailing whitespaces ???
    "undef"          : true, // true: Require all non-global variables to be declared (prevents global leaks)
    "unused"         : "strict", // Warn about defined variable not being used
                                 // true: allow unused parameters followed by used parameter in function e.g.: 'function(a, b) { b++; }' // no warning
                                 // false: disable
                                 // "strict": check all variables and parameters
                                 // "vars": only check variables not functions
    "varstmt"        : false, // true: Use of 'var' are forbidden (user 'let'/'const')

   // 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.
    "elision"        : false, // true: Code uses ES3 array elision elements
    "eqnull"         : false, // true: Tolerate use of '== null'
    "evil"           : false, // true: Tolerate use of 'eval' and 'new Function()'
    "expr"           : false, // true: Tolerate 'ExpressionStatement' as Programs
    "lastsemic"      : false, // true: Tolerate omitting a semicolon for last statement of a 1-line block
    "laxbreak"       : true, // true: <Deprecated> Tolerate possibly unsafe line breakings
    "laxcomma"       : false, // true: <Deprecated> Tolerate comma-first style coding
    "loopfunc"       : false, // true: Tolerate functions being defined in loops
    "moz"            : false, // true: Allow Mozilla specific syntax (extends and overrides esnext features)
                              // (e.g.: 'for each', multiple try/catch, function expression…)
    "multistr"       : false, // true: <Deprecated> Tolerate multi-line strings
    "noyield"        : false, // true: Suppress warnings about generator functions with no yield statement in them
    "plusplus"       : false, // true: Prohibit use of '++' & '--'
    "proto"          : false, // true: Tolerate using '__proto__' property
    "scripturl"      : false, // true: Tolerate script-targeted URLs
    "smarttabs"      : false, // true: Tolerate mixed tabs/spaces when used for alignment ???
    "sub"            : false, // true: <Deprecated> 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 in strict mode
    "withstmt"       : false, // true: Suppress warnings about use of with statement

   // Environments
    "browser"        : true, // Web Browser (window, document, etc)
    "browserify"     : false, // Browserify tool
    "couch"          : false, // CouchDB
    "devel"          : true, // Development/debugging (alert, confirm, etc)
    "dojo"           : false, // Dojo Toolkit
    "jasmine"        : false, // Jasmine unit testing framework
    "jquery"         : false, // jQuery
    "mocha"          : false, // Mocha unit testing framework
    "module"         : false, // Informs that input code describes an ECMAScript 6 module
    "mootools"       : false, // MooTools
    "node"           : false, // Node.js
    "nonstandard"    : false, // Widely adopted globals (escape, unescape, etc)
    "prototypejs"    : false, // Prototype and Scriptaculous
    "qunit"          : false, // QUnit unit testing framework
    "rhino"          : false, // Rhino
    "shelljs"        : false, // ShellJS library
    "typed"          : false, // Define globals for typed array constructors
    "worker"         : false, // Web Workers
    "wsh"            : false, // Windows Scripting Host
    "yui"            : false, // Yahoo User Interface

   // Legacy
    "nomen"          : false, // true: Prohibit dangling '_' in variables
    "onevar"         : false, // true: Allow only one 'var' statement per function
    "passfail"       : false, // true: Stop on first error
    "white"          : false // true: Check against strict whitespace and indentation rules
}