theniceboy

// Adding this line so we can perform the variable assignment: num eachElement = 0;
// ignore_for_file: unused_local_variable

import 'dart:collection';
import 'dart:math';

void main(List<String> args) {
  final list = UnmodifiableListView(
    List<int>.generate(200000000, (index) => index),
  );

theniceboy

import 'dart:async';

import 'package:async/async.dart';
import 'package:flutter/widgets.dart';

/*
This class is a little bit different than the [ValueNotifier] class:
 - Setting the value ALWAYS notifies listeners, even if the value is the same.
 - It uses streams over [ValueListenableBuilder]'s setState approach to make it
   easier to use with other async code.

theniceboy

Printing triangles

Part I

Write the function repeatString that takes a String and an integer, and returns a String built by repeating the given String given number of times.

For example, one should be able to call

print(repeatString("*", 10));

and get