Interactive Node.js Runtime Playground
Execute asynchronous Node.js scripts and trace event loop execution phases in real time.
Interactive Node.js Sandbox
Node.js Script Runner & Event Loop Execution Tracer
JavaScript Code (Node.js API):Click “Execute Script” to simulate
Presets:
node script.js stdout:Execution: 0.04 ms
>1. Sync Start
>1.5. Sync End
>2. process.nextTick (VIP Queue)
>3. Promise.then (Microtask)
>5. setTimeout (Timers Phase)
>4. setImmediate (Check Phase)