I’m trying to find out if Ember.A() can be used also with non-Objects. In the documentation, ethe strings are used in Enumerables together with pushObject() [e.g. in https://guides.emberjs.com/v2.16.0/object-model/enumerables/]
But when I try to add an empty string (as with push()), the value is not added. When I try to do replace, the item is removed from the array.
let arr = Ember.A(['first', 'second', 'third']);
arr.replace(0, 1, 'new-first');
arr.replace(1, 1, '');