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Stale closure trong React là gì và làm thế nào để khắc phục? · ORA·tech

Nâng cao Pro#javascript

Stale closure trong React là gì và làm thế nào để khắc phục?

15 tháng 2, 2026

Tóm tắt nhanh

Stale closure xảy ra khi một closure "chụp" (capture) các biến từ scope bên ngoài tại một thời điểm trong quá khứ và giữ lại giá trị cũ (stale) đó, không cập nhật theo trạng thái mới nhất. Trong React, lỗi này thường xuất hiện khi sử dụng Hooks (`useEffect`, `useCallback`) với một dependency array bị thiếu hoặc rỗng.

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