Modern Angular features
If I were mentoring a senior Angular developer in Angular 19–21 , I would say this: Don't just learn the API. Learn why Angular introduced it and when to use it. That's what interviewers expect from a senior engineer. Below are the modern Angular features you should master. 1. Signals ⭐⭐⭐⭐⭐ (Highest Priority) Signals are Angular's new reactive state management system. Writable Signal import { signal } from '@angular/core'; count = signal(0); increment() { this.count.update(value => value + 1); } reset() { this.count.set(0); } Read value: console.log(this.count()); Notice: count() not count 2. Computed Signal ⭐⭐⭐⭐⭐ Automatically recalculates when dependencies change. count = signal(5); doubleCount = computed(() => this.count() * 2); this.count.set(10); console.log(this.doubleCount()); Output 20 No subscriptions. No RxJS. No manual update. 3. Effect ⭐⭐⭐⭐⭐ Runs whenever a signal changes. effect(() => { console.log(this.count()); }); If this.co...