A JavaScript event loop explorer: step through a sample program and watch the call stack, macrotask queue and microtask queue fill and drain, so the execution order of timeouts, promises and synchronous code becomes visible.

by dev:local
interactive
Built in 1 step
  1. A JavaScript event loop explorer: step through a sample program and watch the call stack, macrotask queue and microtask queue fill and drain, so the execution order of timeouts, promises and synchronous code becomes visible.
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