I posted this same topic on reddit, but thought it would be helpful to post it here as well, since reddit forum is focused on just Angular 2. Here is link to my issue. reddit post If there is a preference to post all data here let me know and I can do that as well. Thanks.
What do you need beyond Array.filter() ?
It only works if you select one item… It needs to work with multiple selections not just one.
I found a simple solution that I think will work. Please see my update on reddit post.