How Do Event Loops in node.js Work?
Too Long; Didn't Read
Understanding how node.js event loops work will help you write more performant code. Understanding how the event loop works is important for developers. The event loop has multiple phases: Expiring time callback I/O polling and callbacks setImmediate Callbacks close callbacks. This phase takes care of callbacks from expired timers; this phase shuts down when all events are processed. In this phase, all events that are processed are processed, when all callbacks close, closing the fourth phase.