.jshintrc

{
  // Enforcing Options /////////////////////////////////////////////////////////

  "bitwise"       : true,   // Prohibit bitwise operators (&, |, ^, etc.).
  "curly"         : true,   // Require {} for every new block or scope.
  "eqeqeq"        : true,   // Require triple equals i.e. `===`.
  "forin"         : false,  // Tolerate `for in` loops without `hasOwnPrototype`.
  "immed"         : true,   // Require immediate invocations to be wrapped in parens e.g. `( function(){}() );`
  "latedef"       : true,   // Prohibit hariable use before definition.
  "newcap"        : true,   // Require capitalization of all constructor functions e.g. `new F()`.
  "noarg"         : true,   // Prohibit use of `arguments.caller` and `arguments.callee`.
  "noempty"       : true,   // Prohibit use of empty blocks.
  "nonew"         : true,   // Prohibit use of constructors for side-effects.
  "plusplus"      : false,  // Prohibit use of `++` & `--`.
  "regexp"        : false,  // Prohibit `.` and `[^...]` in regular expressions.
  "undef"         : true,   // Require all non-global variables be declared before they are used.
  "strict"        : true,   // Require `use strict` pragma  in every file.
  "trailing"      : true,   // Prohibit trailing whitespaces.

  // Relaxing Options //////////////////////////////////////////////////////////

  "asi"           : false,  // Tolerate Automatic Semicolon Insertion (no semicolons).
  "boss"          : false,  // Tolerate assignments inside if, for & while. Usually conditions & loops are for comparison, not assignments.
  "debug"         : false,  // Allow debugger statements e.g. browser breakpoints.
  "eqnull"        : false,  // Tolerate use of `== null`.
  "es5"           : true,   // Allow ECMAScript 5 syntax.
  "esnext"        : false,  // Allow ES.next specific features such as const and let
  "evil"          : false,  // Tolerate use of `eval`.
  "expr"          : false,  // Tolerate `ExpressionStatement` as Programs.
  "funcscope"     : false,  // Tolerate declaring variables inside of control structures while accessing them later
  "globalstrict"  : true,   // Allow global "use strict" (also enables 'strict').
  "iterator"      : false,  // Allow usage of __iterator__ property.
  "lastsemic"     : false,  // Tolerate semicolon omited for the last statement.
  "laxbreak"      : false,  // Tolerate unsafe line breaks e.g. `return [\n] x` without semicolons.
  "laxcomma"      : true,   // This option suppresses warnings about comma-first coding style
  "loopfunc"      : false,  // Allow functions to be defined within loops.
  "multistr"      : false,  // Tolerate multi-line strings.
  "onecase"       : false,  // Tolerate swithes with only one case.
  "proto"         : false,  // Allow usage of __proto__ property.
  "regexdash"     : false,  // Tolerate unescaped last dash i.e. `[-...]`.
  "scripturl"     : true,   // Tolerate script-targeted URLs.
  "smarttabs"     : false,  // Allow mixed tabs and spaces when the latter are used for alignmnent only.
  "shadow"        : false,  // Allows re-define variables later in code e.g. `var x=1; x=2;`.
  "sub"           : true,   // Tolerate all forms of subscript notation besides dot notation e.g. `dict['key']` instead of `dict.key`.
  "supernew"      : true,   // Tolerate `new function () { ... };` and `new Object;`.

  // Environments //////////////////////////////////////////////////////////////

  "browser"       : false,  // Defines globals exposed by modern browsers
  "couch"         : false,  // Defines globals exposed by CouchDB
  "devel"         : false,  // Allow developments statements e.g. `console.log();`.
  "dojo"          : false,  // Defines globals exposed by the Dojo Toolkit
  "jquery"        : false,  // Defines globals exposed by the jQuery
  "mootools"      : false,  // Defines globals exposed by the MooTools
  "node"          : true,   // Defines globals exposed when running under Node.JS
  "nonstandard"   : false,  // Defines non-standard but widely adopted globals such as escape and unescape
  "prototypejs"   : false,  // Defines globals exposed by the Prototype
  "rhino"         : false,  // Defines globals exposed when running under Rhino
  "wsh"           : false,  // Defines globals exposed when running under WSH

  // Legacy ////////////////////////////////////////////////////////////////////

  "nomen"         : false,  // Prohibit use of initial or trailing underbars in names.
  "onevar"        : false,  // Allow only one `var` statement per function.
  "passfail"      : false,  // Stop on first error.
  "white"         : false,  // Check against strict whitespace and indentation rules.

  // Undocumented //////////////////////////////////////////////////////////////

  "maxerr"        : 100,    // Maximum error before stopping.
  "indent"        : 2       // Specify indentation spacing
}