Emitting events from child to parent components enables upward communication in Angular’s component hierarchy for user interactions and data updates. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented event emission extensively for form submissions, button clicks, and custom component interactions. From my expertise, using EventEmitter with @Output decorator is the standard pattern for child-to-parent communication in Angular. This approach maintains proper data flow while keeping components decoupled and reusable.