When you want to create an object of some kind but don’t know what kind of object it should be because you want to create it around a certain context, you can use a Factory constructor. Dart has the native Factory pattern. This is what we are going to tea
- [Narrator] Hi, and welcome to the section…on Advanced Dart Language Features.…Good job already, we have learned already a lot.…In this section we're going to look…at more advanced Dart language features.…These features are very specific towards Dart,…and not every programming language…will have such equivalent features.…Also, we will see how to build a factory constructor,…what are formal and optional parameters.…Then we need to work with the null-aware feature…and mixin.…
Now we move onto the first video of this section…that deals with factory constructor.…In this video we're going to learn…about factory constructor,…how to create multiple objects,…and we will show you how a factory constructor…looks like and how you can use it.…In class-based programming,…the factory pattern is a creational pattern…that uses factory constructor…to deal with the problem of creating objects…without having to specify the exact class of the objects…that will be created.…
The object that has been created…is the type of the factory constructor.…
Dart is a new open-source programming language for the web. It is a single language for both client and server that can be used to build large-scale web, server, and mobile applications. Stop solving new challenges with the same old tools—let Dart show you a whole new way! In this course, author Joris Hermans guides you into the wonderful world of web development with the dartlang programming language. By following along, you get a more mature sense of how to build a great application and see all the facets needed to reach that goal.
Learn the important language features of Dart, along with some advanced features such as mixins and null-aware operators. Later on, see how to use unit tests, work with browser APIs, and set up of a web server. Finally, take a look at Angular 2, a great front-end framework also built by Google.
This course provides you with everything you need to know to start or enhance your career in web development with Dart.
- Installing Dart
- Creating a basic web application with Dart
- Creating DOM interactions
- Creating classes and objects
- Implementing a library
- Using parameters, null-aware operators, and mixins
- Testing your code
- Setting up APIs
- Using Dart localStorage
- Working with AngularJS
- Troubleshooting Dart applications