Given an element instance, how do I see how many observers it's maintaining?
I'm trying to figure if either of these implementations is more expensive.
Polymer({
fooChanged: function() {
this.bar = foo.baz;
}
}
Polymer({
computed: {
'bar': 'foo.baz'
}
}
I suspect they're equivalent (except that one is watching foo, the other is watching the path) but I want to be sure.