positive_num 1.0.7+1

A value object that incapsulates a positive number in Dart.

A value object that incapsulates a positive number in Dart. It respects both int and double types.

Getting started

How to start using the package

dart pub add positive_num

Or specify the package's git url in pubspec.yaml at the dependencies section like that

dependencies:
  positive_num:
    git:
      url: https://github.com/maxeema/positive_num.git

Then import it in your code.

import 'package:positive_num/positive_num.dart';

Usage

import 'package:positive_num/positive_num.dart';

void main() {
  var someNumber = 1;
  //
  final (:error, :instance) = PositiveNum.create(someNumber);
  if (instance != null) {
    final positiveNum = instance;
    print('Created a PositiveNum instance with value $positiveNum.');
  } else {
    print('Error. $error');
  }
}

Before run

dart pub get

Run example

dart run example/positive_num_example.dart

Run tests

dart test

Copyright

© Max Shemetov, 2023