Data flows top down, from parents to nested children, either explicitly via props or made available as context by parent providers. If data needs to be sent upw

Data flows top down, from parents to nested children, either explicitly via props or made available as context by parent providers. If data needs to be sent upwards, the parent component must send down a callback which the nested component can call. Hooks are frankly something that you just have to put work into learning though as they can’t be succinctly explained. It’s worth the effort though. Where ordinary programming paradigms result in tangled and messy state, and pure functional paradigms try to pretend state doesn’t exist and stick it all in a monad, hooks provide a framework to handle state in a way that composes much like pure functions do.