# greatfrontend/top-reactjs-interview-questions

Most important React.js interview questions for busy Frontend Engineers (updated for 2026)

Repository: https://github.com/greatfrontend/top-reactjs-interview-questions
Canonical: https://ross.abutalabs.com/products/top-reactjs-interview-questions
Homepage: https://www.greatfrontend.com/questions/react-interview-questions/quiz?gnrs=github
Language: MDX
License Family: other
Topics: front-end-development, interviews, javascript, react, react-interview-questions, reactjs
Last push: 2026-08-16T08:19:20+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 35, longevity 57
- inputs: {"age_days": 808, "days_push": 17, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5908, forks 185 (observed 2026-08-28T04:09:32.145522+00:00)

## What it is
A curated collection of the most important React.js interview questions with high-quality answers, maintained by GreatFrontEnd and updated for 2026. It is a study/reference resource for frontend engineers preparing for job interviews, complementing GreatFrontEnd's paid interview prep platform.

## Use cases
- prepare for a react frontend engineer interview
- study common react interview questions and answers
- review react hooks and state management concepts before an interview
- find curated react interview questions updated for 2026
- learn react fundamentals like jsx, props, state, and keys
- brush up on react 19 features like server components and the react compiler

## When to choose
- you are a frontend engineer preparing for React-focused job interviews
- you want concise, expert-written answers to common React questions
- you need a free, regularly updated React interview question bank

## When to avoid
- you need a runnable React library or component code, not study material
- you want general JavaScript or algorithm interview prep rather than React-specific questions
- you need interactive coding practice, which requires the paid GreatFrontEnd platform

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, developer-tools
- domain: frontend, web-development, tutorials, education
- platform: -
- tags: react, interview-preparation, interview-questions, frontend-interview, mdx, study-guide, web, javascript

## Member repositories
- greatfrontend/top-reactjs-interview-questions (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:32.145522+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:51:17.549889+00:00, confidence not recorded.
  - readme: https://github.com/greatfrontend/top-reactjs-interview-questions (fetched 2026-08-28T04:09:32.145522+00:00, sha e25468e01c24)
  - homepage: https://www.greatfrontend.com/questions/react-interview-questions/quiz?gnrs=github (fetched 2026-08-29T08:47:05.418257+00:00, sha b71f13ede172)
  - site_page: https://www.greatfrontend.com/about (fetched 2026-08-29T08:47:05.427995+00:00, sha 75cab58a2e8d)
  - site_page: https://www.greatfrontend.com/interviews/pricing (fetched 2026-08-29T08:47:05.421516+00:00, sha 44e01c8ba4e7)
  - site_page: https://www.greatfrontend.com/questions/quiz/react-interview-questions?framework=react&tab=quiz (fetched 2026-08-29T08:47:05.424287+00:00, sha b99abdbfccf9)
- Data as of 2026-08-30T08:39:29.467469+00:00.