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anonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·tech

anonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·tech

anonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·tech

anonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·tech

anonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·techanonymous · 23:42 3/6/26 · ORA·tech

Tại sao dùng Object làm dependency trong useEffect dễ gây infinite loop và cách khắc phục? · ORA·tech

Nâng cao Pro#react

Tại sao dùng Object làm dependency trong useEffect dễ gây infinite loop và cách khắc phục?

15 tháng 2, 2026

Tóm tắt nhanh

React so sánh các phần tử trong mảng dependency bằng thuật toán so sánh nông (shallow comparison) qua `Object.is`. Do đó, việc truyền một Object (hoặc Array/Function) được khai báo bên trong component vào dependency sẽ tạo ra tham chiếu mới sau mỗi lần render, dẫn đến vòng lặp vô hạn (infinite loop).

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