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MutationObserver

DOM 변경 관찰자 · atlas35-mutation

An API that asynchronously observes configured DOM child-node, attribute or character-data changes.

Try the example

When to use it

Add nodes, change attributes, start and disconnect observation

Caveats and distinctions

Does not directly observe computed style or layout-size changes. Disconnect observers during cleanup.

Implementation and classification

웹·CSS / 웹 렌더링·성능·상태 / HTML · CSS · JavaScript

Sources and verification status

https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver

공식 API·접근성 패턴 문서 · 공식 본문 확인 · 자체 제작 학습용 예제 · 2026-10-29

Source scope and verification status describe the existing catalog record. Publishing this page does not independently re-verify the latest library version, license, or production behavior.

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