Angular 19 Has a Free API You've Never Heard Of

Angular 19 is the latest major release with standalone components by default, signal-based reactivity, and incremental hydration. The new APIs make Angular simpler and faster than ever. What's New in Angular 19? Standalone by default — no more NgModules for new projects Signal-based reactivity — fine-grained updates Incremental hydration — SSR with progressive hydration Resource API — built-in data fetching primitives linkedSignal — computed signals with write-back The Hidden API: Signals import { signal , computed , effect , linkedSignal } from ' @angular/core ' ; @ Component ({ selector : ' app-counter ' , template : ` <p>Count: {{ count() }} (doubled: {{ doubled() }})</p> <button (click)="increment()">+1</button> ` }) export class CounterComponent { count = signal ( 0 ); doubled = computed (() => this . count () * 2 ); constructor () { effect (() => { console . log ( `Count changed to ${ this . count ()} ` ); }); } increment () { this . count . update ( v => v + 1 ); } } Resource AP