Please see my jsbin here http://jsbin.com/puxefasohu/1/edit?html,js,output I have a "Receipt" component that contains a computed function of 'total'. In the parent component, I am trying to get a total of all the 'Receipt' component's instances of this computed value to get my 'Grandtotal', but I am unable to communicate the Component instances to the parent. What am I doing wrong?
I would consider using Custom Events. It will decouple your "Receipt" component from having to know that it's parent "needs" a grand total. Just announce changes in your Receipt total and let your parent listen for those changes.