Well you can do `polymer-redux`, `polymer-uniflow` or mixins (https://www.captaincodeman.com/2017/07/06/managing-state-in-polymer-20-beyond-parent-child-binding

Well you can do `polymer-redux`, `polymer-uniflow` or mixins (https://www.captaincodeman.com/2017/07/06/managing-state-in-polymer-20-beyond-parent-child-binding https://www.captaincodeman.com/2017/07/06/managing-state-in-...). I went with redux. You could I guess technically you could implement $broadcast - but that would be slow same as with angular, as for $emit you can just emit standard events.