Ng-News 25/27: Performance, Zoneless, viewProviders, Signal in DevTools

#webdev #programming #javascript #angular

This week: Angular performance tips, Zoneless mode explained, rare gems like viewProviders, Signals land in DevTools, and ng-India recordings are out!

🔧 Unlocking Angular Performance

Sonu Kapoor has published a detailed article about performance optimization in Angular applications.

He starts with the NgOptimizedImage directive, explaining its features and how it helps improve image loading performance. From there, he moves on to lazy loading — not just for routes, but also components and the new defer block.

In the final section, he shares practical tips on getting the most out of Angular’s Change Detection, or at least on how not to shoot yourself in the foot.

Unlocking Angular Performance: Optimization Techniques

Sonu outlines six essential strategies to enhance the speed and responsiveness of Angular applications: image optimization, routing, deferrable views, change detection optimization, employing the a...

codemag.com

🌀 Zoneless Angular

After writing an e-book on Signals last year, Kevin Kreuzer has now published a full article on Zoneless Angular, which is available as developer preview in Angular 20.

He begins by explaining the role zone.js traditionally played in triggering change detection — so that readers understand what we’re actually removing. He then shows how Zoneless works, and provides best practices and examples to help you migrate your application.

https://angularexperts.io/blog/zoneless-angular

🧩 `viewProviders`

Pawel Kubiak just wrote about viewProviders — a feature many Angular devs rarely touch, unless they’re building UI libraries.

Let’s say you build a component that uses content projection and also relies on a service. If you provide that service the regular way, the projected content will have access to it. But if you use viewProviders, only the host component and its children will see it — not the projected content.

It’s a subtle but powerful distinction for encapsulation.

Hidden parts of Angular: View Providers

angularspace.com

🛠 Signal Support in DevTools (Angular 20.1)

This week, we’re expecting the release of Angular 20.1. We probably won’t get Signal Forms just yet, but we will get something many have been waiting for: Signal support in the Angular DevTools extension!

It’s a highly visual feature — which makes it a perfect match for Igor Sedov’s animation-heavy video style. As usual, he delivered.