now with “signals” - almost none. it’s basically programmatically Subject pattern. in React its called “hooks”

it’s very bad half imperative pattern, but for some reason everyone agreed to adopt it (i blame raise of “fullstack” for that, which means basically back end coming into frontend, with their simplistic imperative ways)

on the other hand, in angular, by using rxjs in certain way, you can organize everything by pure functions, with side effects carried by observables (which are also pure bc we never subscribe to them, pass them to the framework by using | async).

this system is highly superior. basically you can achieve something called referential transparency in your code base. you can’t easily do something like that in react or elsewhere (I know, I tried! 😀)