Stop Using ngOnChanges? Angular Signals Explained

🚀 Angular Signals vs ngOnChanges – What's the Difference?

Angular Signals are changing how developers build reactive applications. But does that mean ngOnChanges is obsolete?

In this video, you'll learn:
✅ What are Angular Signals?
✅ What is ngOnChanges?
✅ Key differences
✅ Performance comparison
✅ When to use each approach
✅ Angular 19 best practices

⚡ Quick Comparison

⚡ Angular Signals
Modern reactive state management
Automatic UI updates
Less boilerplate code
Better performance
Recommended for Angular 16+

🔄 ngOnChanges
Lifecycle hook
Detects @Input() changes
Runs when input values change
Useful for legacy applications

💡 Rule of Thumb
✅ Use Signals for local reactive state.
✅ Use ngOnChanges when reacting to @Input() changes from parent components.

🧠 Interview Question:
Can Angular Signals completely replace ngOnChanges?
👇 Comment YES or NO, and explain why.
👍 Like this video if you learned something new. 💾 Save it for your Angular interview preparation. 🔔 Subscribe for more Angular 19, TypeScript, JavaScript, Frontend Development, RxJS, Signals, and Web Development tutorials.

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Видео Stop Using ngOnChanges? Angular Signals Explained канала WebDevelopmentsgs