Angular Addicts #11: Signals 🚦 is coming, Angular 15.2: automatic migration to standalone components & more

My favorite Angular resources of February, 2023

Mar 06, 2023

👋Hey fellow Angular Addict

📰This is the 11th issue of the Angular Addicts Newsletter, a monthly collection of carefully selected Angular resources that got my attention. (You can read the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth issue here.)

👨‍💻👩‍💻Also, we are hiring! Not at Angular Addicts :) Are you an experienced Angular developer from Austria, Germany or Hungary? Join our PAS-X Savvy team, contact me via angular@pasx-savvy.com or LinkedIn!

😲Signals is coming to Angular

In February, the most exciting change in Angular was the merge of the “add Angular Signals to the public API” feature into the 16.0.0-next.0 branch. So we expect this feature to be released officially in Angular 16.

Enea Jahollari extracted the signals code and created a Stackblitz-based example, so you can try signals-based reactivity here. His example still depends on zone.js, but this will change after the Angular team releases the Signals API officially.

In his article (Signals In Angular — Is RxJS Doomed?), Lorenzo Zarantonello explains how signals and Enea’s sample code work.

Ryan Carniato, the author of SolidJS has two detailed introductory articles on the concept of signals:

Brandon Roberts and Alex Rickabaugh made a one-hour long stream about signals:

Joshua Morony also covered this topic on his Youtube channel: Angular is about to get its most IMPORTANT change in a long time

💎Angular Gems of February, 2023

📰The New NgRx

NgRX received several significant updates recently. Armen Vardanyan explains the following changes in detail:

Standalone APIs
Action groups
Features
Extra selectors on features
Functional effects

📰Angular standalone components and Angular Testing Library make component tests easier

In this tutorial, Tim Deschryver shows us how standalone components can improve testability, and together with the Angular Testing library, they provide a great DX.

📰Stop being scared of InjectionTokens

In his in-depth tutorial, Thomas Laforge explains how and when to use Angular’s injection tokens.

📰SOLID Angular: A Guide to Writing Better Code

Gourav Kajal demonstrates the 5 SOLID principles through an example Angular application.

📰🎞️Using NgRx Standalone APIs with Nx

In this article, Colum Ferry walks us through how to use Nx to create a new Standalone Component-based Angular application and add NgRx to it, using ONLY Nx Generators.

📢Release announcements

📢 Angular 15.2.0 is out

Cédric Exbrayat covered the most interesting new features in his article:

Easily migrate to standalone components
Deprecation of class-based guards and resolvers
RouterTestingHarness, a test helper for trigger navigations in tests
withNavigationErrorHandler
NgOptimizedImage has a new loaderParams input

Angular 15.2 contains schematics to automatically convert your application to standalone components. Tim Deschryver shared his experience with this new tool: “I tried the Angular Standalone migration, and here is the result“

💬 Tweets

Here is a collection of my favorite tweets from February, 2023:

Enea Jahollari 🅰 @Enea_Jahollari

Angular v16.0.0-next.0 was just released 🔥! It includes Signals🚦, so you won't have to copy over the signals folder in order to play with them! Also, no ngcc anymore 🎉, and as Alex said, it won't be missed 😆! github.com/angular/angula… #angular

github.comRelease v16.0.0-next.0 · angular/angular16.0.0-next.0 (2023-02-22) Breaking Changes Angular Compatibility Compiler (ngcc) has been removed and as a result Angular View Engine libraries will no longer work common MockPlatformLocation ...

Chau Tran @Nartc1410

#angular #signals #injectiontoken #injectable 1. Injectable class 2. InjectionToken and useFactory Which one would you prefer?

Angular Signals for a TodoMVC store writing with Injectable class

Angular Signals for a TodoMVC store writing with InjectionToken

Michael Rx Hladky @Michael_Hladky

Hi #Angular fans! Here my slides on 🔥🔥signals🔥🔥, fine grained reactivity & #webperf at #ngIndia2023. Mentioned content of: - @Enea_Jahollari - @brandontroberts - @sarah_edo - @pkozlowski_os & @synalx 🖼 slides: bit.ly/angular-signal… 💻code: bit.ly/signal-experim…

Michael Hladky, Slide deck cover Angular of signals reactivity & web performance

Minko Gechev @mgechev

I'm expecting v16 to be very well hydrated...

🙋‍♂️Who is behind Angular Addicts?

My name is Gergely Szerovay, I work as a frontend development chapter lead. Teaching (and learning) Angular is one of my passions. I consume content related to Angular on a daily basis — articles, podcasts, conference talks, you name it.

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