Oder Object By Key Filter

filter.js

angular.module('myModule', [])
.filter('orderObjectByKey', function(lodash) {
  return function(items) {

    if(!items){
      return;
    }

    return lodash.reduce(Object.keys(items).reverse(), (list, key) => {
      list[key] = items[key];
      return list;
    }, {});

  };
})

filter.spec.js

describe('The orderObjectByKey filter', () => {
  var $filter;

  beforeEach(function () {
    module('myModule');

    inject(function (_$filter_) {
      $filter = _$filter_;
    });
  });

  it('should order an object by the key value', function () {
    // Arrange.
    const list = {c: 3, b: 2, a: 1};

    // call the filter function
    const result = $filter('orderObjectByKey')(list);

    // Assert.
    expect(result).toEqual({a: 1, b: 2, c: 3});
  });
});