BAB 11 Null Safety secara Mendalam

Pahami sistem tipe data aman di Dart: pencegahan error Null Pointer Exception, pembagian Nullable & Non-Nullable types, operator null-aware, serta optimasi kode via Type Promotion!

Tujuan Pembelajaran

Sound Null Safety Memahami pentingnya null safety dan bahaya crash null pointer exception.

Nullable & Non-null Mampu membedakan dan mendeklarasikan tipe data nullable (?) serta non-nullable.

Null-aware Operators Menguasai penggunaan operator conditional access (?.), coalescing (??), dan assertions (!).

Type Promotion Memahami cara kerja Flow Analysis untuk menaikkan tipe data nullable secara otomatis.

Konsep & Tipe

Sound Null Safety, Nullable & Non-Nullable

Null-aware Operators

Sintaks Safe Access, Coalescing, & Assertions

Type Promotion

Flow Analysis & Enkapsulasi late

Latihan Mandiri

Tugas Rumah Null Safety

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