gistfile1.txt

In comp-a

Ember.extend(...
   didSave(){
     // default implementation
   }
   actions: {
      onSave() {
        this.sendAction('didSave')
        //or
        this.get('didSave')();
      }
   }
)

When I use comp-a

{{comp-a
  didSave=(action handleSave)
}}