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Step through the timers, pending callbacks, poll, check, close, nextTick, and Promise queues.
Watch how different operations are scheduled and executed across the event loop phases. Each phase has a specific purpose in Node.js's non-blocking architecture.
process.nextTick → Promise.then → queueMicrotask
↓ Runs between EVERY phase below ↓
setTimeout & setInterval callbacks
I/O callbacks deferred to next loop
Internal use only
Retrieve I/O events, execute callbacks
setImmediate callbacks
socket.on("close") callbacks
No events yet
Run a demo to see the event loop in action