Flux in React — React Technical Interview Questions & Answers

Flux in React

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 → UI

Technical Interview Tip: One-way arrows. Redux is Flux-style.

Code Examples for Flux in React

Example

// Flux
console.log("view click → action");
console.log("dispatcher → store");
console.log("store change → view re-renders");

Flux in React — output: three arrows. Redux is a Flux-style library. MVC two-way binding is the contrast.

How to Explain Flux in React to an Interviewer

Explain Flux as if you are teaching a junior — definition, then one tiny UI.

action → dispatcher → store → view. Idea : one-way.

What does the example show on screen (or print), and what does that prove?

Flux in React — output: three arrows

What mistake do freshers make with Flux?

Today : Redux / RTK.