.jshintrc

{
    // Adapted from the JSHint Default Configuration File (as on JSHint website)
    // See http://jshint.com/docs/ for more details

    // Enforcing
    "quotmark"      : true,     // Quotation mark consistency:
                                //   false    : do nothing (default)
                                //   true     : ensure whatever is used is consistent
                                //   "single" : require single quotes
                                //   "double" : require double quotes
    "varstmt"       : true,     // true: Disallow any var statements. Only `let` and `const` are allowed.

    // Relaxing
    "esversion"     : 6,         // {int} Specify the ECMAScript version to which the code must adhere.

    // Environments
    "node"          : true,     // Node.js

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