code: function (container, keyName) {
              for (var element in container) {
                  if (container.hasOwnProperty(element)) {
                      container[element][keyName] = element;
                  }
              }
          }
docs: Go through all the values of an object and adds the corresponding value inside its entries using the provided
  keyName
  @param {Object} container
  @param {String} keyName