hawkkiller

void main() {
  print(formatByDigits(10000));
  print(formatByDigits(9999));
  print(formatByDigits(12000));
  print(formatByDigits(12000000));
}

String formatByDigits(int number) {
  final s = number.toString().split('');
  return s.reversed

hawkkiller

import 'package:flutter/material.dart';
import 'dart:async';
import 'package:meta/meta.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(
    const MyApp(),
  );

hawkkiller

import 'package:meta/meta.dart';

void main() {
  // iterates only first element.
  gen().first;
  print('Iterated first item because of first\n');
  // iterates each element
  gen().toList();
  print('Iterated List\n');
  gen().last;