Interview Q&A / React

INTERVIEW Q&A · 58 QUESTIONS

React interview questions

Rendering, state, hooks, keys and effects, explained with small examples.

  1. What is code splitting and how does it make a React app load faster?

    Code splitting breaks the JavaScript bundle into smaller chunks that load on demand, for example per route. Users download only what the first screen needs, so the page becomes interactive sooner.

    BeginnerQuick answer1 min read