Harden event loop trace
Hard JavaScript arena: microtasks, macrotasks, async/await, and render timing
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Missing prerequisites: javascript-easy-event-loop-trace
A UI animation janks because expensive work lands in the wrong task queue. You are working inside a modern JavaScript application, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply microtasks, macrotasks, async/await, and render timing in a modern JavaScript application while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates microtasks, macrotasks, async/await, and render timing
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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