React Architecture — React Technical Interview Questions & Answers

React Architecture

React Architecture

  • A simple React architecture: src/pages (routes), src/features (cart, auth), src/shared (Button, api client). Data: local useState, Context for rare globals, Redux/TanStack Query when it earns its keep. Keep page files thin — they compose feature components.
  • One-way data still applies at app scale. Don’t create a ‘God Context’ with twenty fields. Don’t put fetch inside random Buttons — a small api module or a query hook.
  • React Architecture — output: pages / features / shared. Don’t dump every component in src/.

Technical Interview Tip: Folders + where state lives.

Code Examples for React Architecture

Example

// Folder sketch
console.log("pages/   routes");
console.log("features/ cart, auth");
console.log("shared/   Button, api");

React Architecture — output: pages / features / shared. Don’t dump every component in src/.

How to Explain React Architecture to an Interviewer

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

Folders : pages / features / shared. State : local → context → store.

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

React Architecture — output: pages / features / shared

What mistake do freshers make with React Architecture?

God context.