How to use

transformObjectProperties

function

in

lodash

_serializeMenuItems (menuItems) {
    return menuItems
      .map(menuItem => transformObjectProperties(menuItem, (result, value, key) => {
        if (CONSTANTS.menuItemSerializableProperties.indexOf(key) >= 0)
          result[key] = value;

        if (key === 'submenu' && value)
          result[key] = this._serializeMenuItems(value.items);
      }, {}));
  }