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Zone.js + Change detection = Overhead. New way: Signal + computed + effect = Fine-grained reactivity.

"No. Signals handle synchronous state; RxJS handles async streams. They merge via toSignal() and toObservable() ." Decoded Frontend - Angular Interview Hacking %21%21TOP%21%21

of the most common RxJS operators mentioned in the guide, or are you looking for where to access the full course? Signals handle synchronous state; RxJS handles async streams

Don't just say one is better. Explain that Reactive Forms are more scalable and easier to unit test because the logic is defined in the TypeScript class rather than the HTML template. Explain that Reactive Forms are more scalable and

When they ask "Why is my view not updating?" — don’t panic. Ask: "Are we mutating objects or replacing them? With OnPush, you need immutable data structures."

Most developers say, "Zone.js monkey-patches async APIs." But the hack is knowing how to escape Zone.js.