.jshintrc

{
  ///////////////////////
  // ENFORCING OPTIONS //
  ///////////////////////

  // This option requires you to always put curly
  // braces around blocks in loops and conditionals.
  "curly": true,

  // This options prohibits the use of == and != in favor of === and !==.
  "eqeqeq": true,

  // This option prohibits the use of explicitly undeclared variables.
  "undef": false,

  // This option requires all for in loops to filter object's items.
  // The for in statement allows for looping through the names of all
  // of the properties of an object including those inherited
  // throught the prototype chain.
  "forin": true,

  // This options prohibits overwriting prototypes of native
  // objects such as Array, Date and so on.
  "freeze": true,

  // This option prohibits the use of a variable before it was defined.
  // This behavior can lead to some very nasty bugs and that's why it is
  // safer to always use variable only after they have been explicitly defined.
  // Setting this option to "nofunc" will allow function declarations to be ignored.
  "latedef": "nofunc",

  // This option prohibits the use of arguments.caller and arguments.callee.
  "noarg": true,

  // This option requires you to capitalize names of constructor functions.
  // Capitalizing functions that are intended to be used with new operator
  // is just a convention that helps programmers to visually distinguish
  // constructor functions from other types of functions to help
  // spot mistakes when using this.
  "newcap": true,

  // This option warns about "non-breaking whitespace" characters.
  "nonbsp": true,

  // This option prohibits the use of constructor functions for side-effects.
  // Some people like to call constructor functions without assigning its result to any variable.
  // There is no advantage in this approach over simply calling MyConstructor
  // since the object that the operator new creates isn't used anywhere so you
  // should generally avoid constructors like this one.
  "nonew": true,

  // This option warns when you define and never use your variables.
  // It is very useful for general code cleanup, especially when used in addition to undef.
  // This can be set to vars to only check for variables, not function parameters.
  // NOTE: Consider settings to "vars"
  "unused": false,

  // This option requires all functions to run in ECMAScript 5's strict mode.
  "strict": true,

  // This option makes it an error to leave a trailing whitespace in your code.
  // Trailing whitespaces can be source of nasty bugs with multi-line strings in JavaScript.
  "trailing": true,


  //////////////////////
  // RELAXING OPTIONS //
  //////////////////////
  // nothing here...


  /////////////////////////////////
  // JSHINT ENVIRONMENT SWITCHES //
  /////////////////////////////////
  // This option defines globals exposed by modern browsers:
  // all the way from good old document and navigator to the
  // HTML5 FileReader and other new developments in the browser world.
  "browser": false,
  // This option defines globals available when your code is running inside
  // of the Node runtime environment. Node.js is a server-side JavaScript
  // environment that uses an asynchronous event-driven model.
  // This option also skips some warnings that make sense in the
  // browser environments but don't make sense in Node such as
  // file-level use strict pragmas and console.log statements.
  "node": true,
  // This option defines globals that are usually used for
  // logging poor-man's debugging: console, alert, etc.
  "devel": false,


  //////////////////////////////////
  // OVERRIDES FOR SUBDIRECTORIES //
  //////////////////////////////////
  "overrides": {
    // overrides for test folders inside src/app
    // revoke some of the options above
    "**/test/**/*.spec.js": {
      "devel": true,
      "mocha": true,
      "globals": {
        "expect": true,
        "sinon": true
      },
      "expr": true
    }
  }
}