ended6월 4일· 1 sources

Promises Before Timeouts: The Secret Behind JavaScript's Event Loop

Promise는 왜 setTimeout보다 먼저 실행될까? JavaScript Event Loop의 진실

Why it matters

Understanding JavaScript's event loop and microtask queue is essential for debugging asynchronous code behavior that confuses many developers. This article reveals why Promises execute before timeouts, a critical insight for writing predictable async applications and avoiding race conditions. Mastering these hidden mechanisms enables developers to optimize performance and eliminate timing-related bugs.

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JavaScript AsynchronyEvent LoopPromiseCall StackMicrotask

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