A Method to Produce Constants in ES5

const.js

// A small function that allows the creation of constants in ES5.
// Arguments:
//   name <String>: The name of your constant
//   value <Any>: The value of your constant
//   isEnumerable <Bool>: Should your constant be enumerable? optional, defaults to true
//   scope <Object>: The scope to which the constant is bound. optional, defaults to window (global)

var Const = function (name, value, isEnumerable, scope) {
  "use strict";
  
  if (isEnumerable === undefined) {
    isEnumerable = true;
  }
  
  if (scope === undefined) {
    scope = window;
  }
  
  var properties = {};
  properties[name] = {
    value: value,
    enumerable: isEnumerable
  };
  
  Object.defineProperties(scope, properties);
};