Sort and Filter

Learning Team
1

i have created a small SPA with Ember as Frontend getting the Data of a Laravel Backend via REST API.

But is the code best quality ??? is it clean code ???

or can I improve it ???

the users-controller:

import Controller from '@ember/controller';
import { computed } from '@ember/object';
export default Controller.extend({
  appName: 'Ember Twiddle User',
  sortBy: 'firstName:asc',

  filteredItems: computed(
    'sortBy',
    'filterFirstName',
    'filterLastName',
    'filterCity',
    'filterZipCode',
    'filterFisatLevel',
    'model.[]',
    function() {

    return this.model.filter((user) => {
      return (!this.filterFirstName || user.firstName.includes(this.filterFirstName))
    && (!this.filterLastName || user.lastName.includes(this.filterLastName))
    && (!this.filterCity || user.city.includes(this.filterCity))
    && (!this.filterZipCode || user.zipCode.includes(this.filterZipCode))
        ;
        })
      }),

    pagedItems: computed('filteredItems.[]', function() {
    return this.sortedItems.slice(0, 20);
  }),

  sortByArray: computed('sortBy', function() {
    return [this.sortBy]
  }),

  sortedItems: computed.sort('filteredItems', 'sortByArray'),

});

Frontend: https://github.com/rassloff/ember_frontend

Backend: https://github.com/rassloff/API_passport