How can I output my object properties with this enumerating extension in Flutter/Dart?

I want to print specific individualized object properties with this extension- Source: HERE

extension ExtendedIterable<E> on Iterable<E> {    /// Like Iterable<T>.map but callback have index as second argument    Iterable<T> mapIndex<T>(T f(E e, int i)) {      var i = 0;      return this.map((e) => f(e, i++));    }      void forEachIndex(void f(E e, int i)) {      var i = 0;      this.forEach((e) => f(e, i++));    }  }  

I am saving user data from textFields into a Hive box.

When I do the following...

final box = Hive.box(personTable).values.toList();      final hiveBox = Hive.box(personTable);      final indexingBox = box.mapIndex((e, i) => 'item$e index$i');      final Person person = hiveBox.getAt(0);      print(person);      print(indexingBox);  

I get the following printed:

flutter: {John, Biggs, 34, Active}  flutter: (item{John, Biggs, 34, Active} index0, item{Kostas, Panger, 76, Active} index1, item{Ben, Kenobi, 78, Deactivated} index2, ..., item{Luke, Skywalker, 45, Active} index5, item{Darth, Vader, 54, Active} index6)  

I want to be able to enumerate selectively, each object property as I please.

This is what I want to be able to print:

• flutter: John. // index 0 firstName
• flutter: Kostas // index 1 firstName
• flutter: Vader // index 6 lastname

Class saving into Hive box:

import 'package:hive/hive.dart';  part 'person.g.dart';    @HiveType(typeId: 0)  class Person {    @HiveField(0)    final String firstName;    @HiveField(1)    final String lastName;    @HiveField(2)    final String age;    @HiveField(3)    final String status;    Income({      this.firstName,      this.lastName,      this.age,      this.status,    });    @override    String toString() {      return '{${this.firstName}, ${this.lastName}, ${this.age}, ${this.status}}';    }  }    

If I can't solve this once and for all my head may as well explode, this is part of a bigger picture of making a DataTable very simple and dynamically loading. Help is appreciated!

https://stackoverflow.com/questions/66486853/how-can-i-output-my-object-properties-with-this-enumerating-extension-in-flutter March 05, 2021 at 12:38PM