What is Angular 2.0?

Greetings my fellow Coders!

Definition

• Front-end Web TypeScript/JavaScript MVC/MVVM/MV* UI framework for SPA (Single Page Applications)
• Rewrite of version 1.x/not backwards compatible
• May 2015 Google previewed
• Version 1 debuted in 2009

Why Use It?

• Build complex elegant web or hybrid-mobile apps
• Full-fledged framework as opposed to a small library. Not just the V (View) but also the controller/ViewModel, etc.
• Routing
• Binding
• Many improvements over 1.x, lessons learned to carry over best practices
• Performance
• Simplified
• adheres more to current and future standards
• Web components
• Productivity with more promotion/usage of TypeScript, which aids productivity around
• compile-time checking
• auto-complete/intellisense
• tooling support for classes, interfaces

When Not to Use It, Concerns

• When you need need native apps for squeezing out maximum performance (NativeScript tries to address some of this by building native apps from one JavaScript code-base)
• SEO may be more complicated (isomorphic/universal nature tries to address this by rending on the server)
• React may be faster in some scenarios for the view/rendering (Angular 2 is much faster than Angular 1, and close to React with it’s own implementation of the shadow DOM)
• Size/payload may be larger than some other libraries (libraries and modularity still being optimized at the time of this writing)

Let’s go play with some code!

References
— http://www.codeandyou.com/2015/12/upcoming-angular-2-books.html
— http://www.captechconsulting.com/blogs/angular-2-tutorial-series-the-basics
— https://angular.io/features.html
— https://leanpub.com/angular2-book

Originally published at dnafor.net on December 15, 2015.