.jshintrc

{
  // JSHint Default Configuration File (as on JSHint website)
  // See http://jshint.com/docs/ for more details
  "maxerr": 50,
  // {int} Maximum error before stopping

  // Enforcing
  "bitwise": true,
  // true: Prohibit bitwise operators (&, |, ^, etc.)
  "camelcase": false,
  // true: Identifiers must be in camelCase
  "curly": true,
  // true: Require {} for every new block or scope
  "eqeqeq": true,
  // true: Require triple equals (===) for comparison
  "forin": true,
  // true: Require filtering for..in loops with 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": 6,
  // {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

  "-W030": true,
  "-W049": true,
  // unexpected escaped char
  "-W066": true,
  "-W083": true,
  // don't make function in loops
  "-W098": true,
  // x is defined, but not used
  "-W117": true,
  // x is not defined

  // Custom Globals
  "globals": {
    // additional predefined global variables
    "$": false
  }
}