Question

Native Array in Emberjs does not support deep copy? I saw it just returning sliced array in the copy method. Is it a bug?

Answer 1

Currently, that’s an improvement going on Ember, reported by @adamjmurray: https://github.com/emberjs/ember.js/issues/588

There’s also a proposition to implement it. You can use it like this:

var NativeArray = Ember.Mixin.create(Ember.NativeArray, {
    copy: function(deep) {
        if (deep) {
            return this.map(function(item){ return Ember.copy(item, true) });
        } else {
            return this.slice();
        }
    }
});

NativeArray.apply(Array.prototype);