You now have a better understanding of event-driven architecture, which is one of the key concepts of Dart VM. Event-driven architecture is the right approach to build loosely coupled asynchronous systems.
Dart relies on event-driven architecture based on a single-threaded execution model with a single event loop and two queues. The event loop is backed by a single thread, so no synchronization or locks are required at all. When the event loop is blocked with an operation, this blocks the entire application. A combination of single-threaded execution models and asynchronous operations allows an application to be more productive and less resource intensive.
Future
is a proxy for an initially unknown result that returns as a value instead of calling a callback function. Future
almost always adds an event or microtask into the queue that is being processed in the event loop. Future
can be completed with a value or error only once.
Zones implement the best practices of a configurable...