Ember Subs ((top)) -

⚠️ Use sparingly – overuse makes data flow hard to trace. | Pitfall | Fix | |---------|-----| | Forgetting to unsubscribe | Always call disconnect() or .off() in willDestroy | | Memory leaks | Check that references to components/services are cleared | | Stale data | Verify subscription updates tracked properties correctly | | Multiple subscriptions | Use a single service as the source of truth |

// Unsubscribe (important!) this.eventBus.off('data-updated', this, this.handleUpdate); ember subs

// app/services/event-bus.js import Service from '@ember/service'; import Evented from '@ember/object/evented'; export default class EventBusService extends Service.extend(Evented) {} ⚠️ Use sparingly – overuse makes data flow