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Phân biệt các Scope Functions trong Kotlin và cách lựa chọn phù hợp? · ORA·tech

Trung bình Pro#android

Phân biệt các Scope Functions trong Kotlin và cách lựa chọn phù hợp?

15 tháng 2, 2026

Tóm tắt nhanh

Scope functions trong Kotlin (`let`, `run`, `apply`, `also`, `with`) khác nhau ở hai tiêu chí cốt lõi: cách tham chiếu đối tượng ngữ cảnh (`this` hoặc `it`) và giá trị trả về (chính đối tượng đó hoặc kết quả của lambda). Lựa chọn đúng hàm giúp code sạch hơn, tránh shadowing và tối ưu hóa hiệu năng nhờ cơ chế `inline`.

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