examifyr

Readiness test · Free · No sign-up required

Free React Quiz

Test your React knowledge with 25 exam-style questions. Get an instant readiness score, find your weak spots, and know if you're ready for your next React interview — no sign-up required.

One question at a time, explained as you go · no sign-up

Instant resultsTopic breakdownWeak area detectionPass likelihood

What this test covers

This quiz covers React fundamentals through advanced hooks. Questions mirror what frontend engineering interviews and certification bodies actually test.

  • Components & Props
  • useState & State Management
  • useEffect & Side Effects
  • Event Handling
  • Conditional Rendering
  • React Hooks (useRef, useContext, useMemo)
  • Component Lifecycle

How it works

01

Pick your difficulty

Choose Easy, Medium, or Full test depending on where you are in your learning.

02

Answer questions

One question at a time. Click an answer and get instant feedback with a full explanation.

03

Get your score

See your readiness score (0–100), pass likelihood, and a topic-by-topic breakdown.

Frequently asked questions

How many questions are in the React quiz?
The full test (Hard mode) has 25 questions across 7 topics. Easy mode gives beginner questions only; Medium mode adds intermediate questions.
What React version do the questions cover?
Questions focus on modern React (v16.8+) with hooks. Class components are covered briefly as exam context, but the emphasis is on functional components and hooks.
Is this quiz useful for React job interview prep?
Yes. Questions are modelled on what frontend engineers are tested on in technical screens at software companies using React.
Is it free? Do I need to sign up?
Completely free, no account needed. Pick a difficulty and start.
What do I get at the end?
An instant readiness score (0–100), pass likelihood, a topic-by-topic accuracy breakdown, and a list of your weak areas to study next.

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