Observable vs Promise in Hindi🔥Real Reason Angular HTTP Uses Observable |Angular Interview Must-Know

In this video, we explain why Angular uses Observable instead of Promise for HTTP calls. You will learn: Why this.http.get() returns an Observable How cancellation works using unsubscribe() What lazy execution means in Observable Why HTTP is treated as a stream How parallel API calls work using Promise.all() vs forkJoin() Real-time file upload progress using observe: 'events' Observable vs Promise interview questions 🎯 Perfect for: Angular developers JavaScript interview preparation Frontend interviews Developers confused between Promise & Observable