Flutter, Flutter App Development, Data Structures, Algorithms.
this.name, this.friends = const []}); } final User alice = User(id: 1, name: "Alice"); final User bob = User(id: 2, name: "Bob"); final User charlie = User(id: 3, name: "Charlie"); final User david = User(id: 4, name: "David"); final User erin = User(id: 5, name: "Erin"); alice.friends.addAll([bob,