Flux in React
Flux is a pattern Facebook described: view fires an action, a dispatcher fans it to stores, stores update, view re-renders. Data goes one way. Redux simplified this (single store, reducers). You don’t implement a Dispatcher class in 2026 apps, but the idea explains Redux interviews.
Flux in React — output — three arrows. Redux is a Flux-style library. MVC two-way binding is the contrast.
view click
│ dispatch
▼
reducer
│ new state
▼
store → UIExam tip
One-way arrows. Redux is Flux-style.