Angular has used observables and promises for reactivity for years, and they added a new reactive primitive approach in 2023: signals

If Angular already had reactive primitives, what does the new concept add? A lot, actually, with simplified semantics for a lot of common cases, and a foundation for significantly faster and easier change detection.

You will learn about how signals work, where they're the best option, why they don't completely replace observables and promises, and signals are changing Angular's state management, forms, and more.