.jshintrc

{
      /*
       * ENVIRONMENTS
       * =================
       */

      // Define globals exposed by modern browsers.
      "browser": true,

      // Define globals exposed by jQuery.
      "jquery": true,

      // Define globals exposed by Node.js.
      "node": true,

      /*
       * ENFORCING OPTIONS
       * =================
       */

      // Force all variable names to use either camelCase style or UPPER_CASE
      // with underscores.
      "camelcase": true,

      // Prohibit use of == and != in favor of === and !==.
      "eqeqeq": true,

      // Suppress warnings about == null comparisons.
      "eqnull": true,

      // Enforce tab width of 2 spaces.
      "indent": 2,

      // Prohibit use of a variable before it is defined.
      "latedef": true,

      // Require capitalized names for constructor functions.
      "newcap": true,

      // Enforce use of single quotation marks for strings.
      "quotmark": "single",

      // Prohibit trailing whitespace.
      "trailing": true,

      // Prohibit use of explicitly undeclared variables.
      "undef": true,

      // Warn when variables are defined but never used.
      "unused": true,

      // Enforce line length to 80 characters
      "maxlen": 100,

      // Enforce placing 'use strict' at the top function scope
      "strict": true,

      // ECMAScript version
      "esversion": 6
}