Types, Null Safety, Classes & Collections Variables & Null Safety int count = 5; var name = "Ada"; // inferred as String String? nickname; // nullable — can hold null String description = nickname ?? "no nickname"; // nu…
ReadAsync, Mixins & the Flutter Toolchain Future vs. Stream Future<String> fetchName() async { final response = await http.get(url); return response.body; } Stream<int> countdown() async* { for (int i = 3; i > 0; i--) { yiel…
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