reactjs-interview-questions: a question list with no releases, so anchors are the only stable link
List of top 500 ReactJS Interview Questions & Answers....Coding exercise questions are coming soon!!
At a glance
- What is it?
- This repository is a numbered table of React interview questions in a single Markdown file, with ts-node as its only dev dependency and no published releases. What a reader or a hiring manager actually gets is a syllabus whose links are heading anchors on a branch.
- Who is it for?
- Use this repository as a syllabus and as a source of links, not as an answer key you can trust verbatim. It fits a candidate who wants a defensible list of what gets asked and a maintainer who wants pull requests, and it does not fit a team that needs a pinned, versioned curriculum, because there are no releases and only a master branch to point at.
- Can I use it commercially?
- Yes. MIT is a permissive licence: you can use, modify and sell software built on it, as long as you keep its copyright and licence notices.
- Is it still maintained?
- Yes. The repository last received commits 2 days ago.
- What is it written in?
- Mainly JavaScript, according to GitHub's language statistics.
Answers come from the project's GitHub data, last synced on September 30, 2026, and from our analysis. They are not legal advice.
Editorial analysis
The entire deliverable is a Markdown file and one dev dependency
The package manifest is four lines of substance. It is private by omission of a name, and its only entry is a devDependency on `ts-node` at `^10.9.2`. There is no build script, no test command, no bundler, and no site generator.
The top level of the repository matches that. It holds `.github/`, `.gitignore`, `LICENSE`, `README.md`, three directories named `coding-exercise/`, `coding-hooks/` and `coding-projects/`, an `images/` directory, `package-lock.json`, `package.json`, and a `node_modules/` entry.
The consequence is that there is nothing to install and nothing to run. What a reader consumes is text: a heading, a table of contents, and the answers underneath it. Any tool that wants to reuse the questions has to parse Markdown rather than import a package, and a fork is a fork of a document, not of a codebase with an API. The `node_modules/` entry sitting next to a Markdown-only repository is also the kind of thing worth questioning before you treat the tree as a clean source of truth.
Navigation is a numbered table whose links are heading anchors
The table of contents is a two column table, a number and a question, and it is inside a details block with a Hide/Show summary so the page stays readable. Every row is a link to an in-page anchor derived from the heading text.
That is the whole navigation model, and it has consequences. The number is the stable identifier: question 15 is the one about the `key` prop and its benefit when used in arrays of elements, and that stays true even if the prose changes. The anchor is not: reword a heading and every external link to it breaks, silently, because the page still renders and only the link stops working. A long heading such as the one for the difference between an Element and a Component becomes a long anchor, which is fine for humans and awkward for anything generating URLs.
So the practical reading rule is to bookmark the file rather than a question, and to quote the number when you cite one. A reader who has bookmarked a single anchor in a list with no releases has also accepted that the target can be rewritten by a pull request at any time.
It declines core JavaScript and DSA, and names two sibling repositories
A note near the top of the file sets the scope in one sentence: this repository is specific to ReactJS, and for core JavaScript questions you should look at JavaScript Interview Questions, and for DSA related questions or problems, Data Structures and Algorithms. Both are repositories by the same author.
The boundary is deliberate rather than accidental. React questions live here, the language lives elsewhere, and data structures and algorithms live elsewhere again. That is a sensible division because the three are taught differently and reviewed by different people, and it is also the answer to a question candidates ask constantly, which is where to prepare.
The consequence is that preparing properly means three repositories rather than one, and a reader who downloads only this file will find no coverage of closures, prototypes or complexity analysis. The scoping note costs two lines and saves anyone the wasted week of looking for material that was never going to be there, and the last push to the default branch, master, landed on 2026-09-28, so all three are being worked on at once.
Three coding directories exist while the description says they are coming soon
The repository description reads: List of top 500 ReactJS Interview Questions and Answers, followed by Coding exercise questions are coming soon. The top level of the tree contains `coding-exercise/`, `coding-hooks/` and `coding-projects/`.
So the announcement and the tree disagree, and the tree is the one that reflects the current state of the repository. Three directories with those names exist, which means at least part of the coding material has landed even though the description still describes it as pending.
The consequence is about how you evaluate the repository. A candidate who reads the repository description on a search results page will conclude that the coding exercises are missing and look elsewhere, which is a wrong conclusion drawn from accurate text. It is also a reminder that repository descriptions are written once and not revisited, while directories are added and renamed. The same caution applies to the 500 in that description: the table of contents is numbered, so the count is something a reader can verify, and the number in the description is something they cannot.
Three sponsor blocks sit above the questions in the same file
Before the table of contents there are three bordered blocks, each a link out. The first advertises GreatFrontEnd and its 280 plus JavaScript coding interview questions practised in the browser, with the claims built by ex-FAANG interviewers, no AI-generated fluff and no fake reviews. The second points at ZeroToMastery, and the text in the README recommends a React course to become top 10 percent at React and a coding interview bootcamp to ace a coding interview. The third points at ResumeLoom.
They are separated by horizontal rules and each carries tracking parameters in its URL, so the file reads as a page rather than a document.
The consequence is twofold. For a reader, the sponsorship is the first thing on the page and one of the claims is a competitor's marketing copy sitting inside a free list, which deserves the same scepticism as any advertisement. For anyone reusing the material, a fork or a mirror carries that copy with it unless it is stripped, and the promotional sentences are interleaved with the author's own voice, so removing them cleanly means editing prose rather than deleting a block.
The first nineteen questions are ordered foundational first, which makes it a syllabus
The Core React block runs from one to nineteen in a fixed order: What is React, the history behind React's evolution, the major features of React, What is JSX, the difference between an Element and a Component, how you create components, when to use a Class Component over a Function Component, what are Pure Components, what is state, what are props, the difference between state and props, the difference between HTML and React event handling, what are synthetic events, what are inline conditional expressions, the `key` prop and its benefit in arrays of elements, what is the Virtual DOM, how the Virtual DOM works, the difference between Shadow DOM and Virtual DOM, and what is React Fiber.
Read as a sequence it is a course: what the library is, what JSX is, how things compose, what state and props are, how events differ, then the rendering machinery ending at Fiber. The questions that are pure recall come first and the ones that require explaining a design decision come last.
The consequence is that the ordering tells you where to start. Someone with five years of React can go straight to the rendering half, where Shadow DOM versus Virtual DOM and React Fiber are the questions that separate familiarity from understanding, and someone without it should not skip the first ten. The numbering makes that shortcut citable, which is more useful than a tag cloud of topics would be.
No releases, a master branch, and stars and pull requests as the contribution model
The repository has no GitHub releases at all, the default branch is `master`, and there is no homepage recorded. The README opens by asking for a star if you like the project, says pull requests are highly appreciated, and points at the author's Twitter account for technical updates.
What that means for a reader is that there is no version to point at. You cannot say you prepared from 3.2 of this list, because there is no 3.2. A link to the repository, or to an anchor inside it, resolves to whatever `master` holds at the moment it is followed, and the content can change under a pull request between one visit and the next.
The consequence is that this repository is a moving target with a stable skeleton. The structure, the numbering and the section headings are dependable enough to plan around; the prose under any given question is not, and neither is the count in the description. Anyone building on top of it, a study guide, a course, an internal handbook, should copy the text they rely on and record which commit it came from, because the branch name is the only version identifier that exists.
Editorial conclusion
Use this repository as a syllabus and as a source of links, not as an answer key you can trust verbatim. It fits a candidate who wants a defensible list of what gets asked and a maintainer who wants pull requests, and it does not fit a team that needs a pinned, versioned curriculum, because there are no releases and only a master branch to point at. Before you rely on it, count the questions yourself rather than trusting the number in the repository description, and read the answers critically, since nothing in the repository says how they were checked.
Frequently asked questions
What are the most common ReactJS interview questions?
The Core React block opens with What is React, What is JSX, the difference between an Element and a Component, the difference between state and props, the difference between HTML and React event handling, what are synthetic events, and the `key` prop and its benefit in arrays of elements. The block then moves into the Virtual DOM, Shadow DOM versus Virtual DOM, and React Fiber.
Is ReactJS difficult?
The repository does not rate difficulty. What its ordering implies is that the first ten questions are definitional and the later ones are not: React's history, the major features, and JSX come first, while the Virtual DOM, the difference between Shadow DOM and Virtual DOM, and React Fiber come at the end of the Core React block.
How can I prepare for a React interview?
The repository's own structure is the plan: a numbered table of contents with in-page anchors, ordered foundational first. It also states its scope, sending core JavaScript questions to a separate JavaScript Interview Questions repository and data structures and algorithms to a Data Structures and Algorithms repository.
Where can I find reactjs interview questions and answers on GitHub?
In the repository sudheerj/reactjs-interview-questions, which is MIT licensed, sits on a master branch and has no GitHub releases. Its content is the README itself, and the repository also holds coding-exercise, coding-hooks and coding-projects directories.
Is there a reactjs interview questions and answers PDF?
The repository does not publish a PDF. The questions and answers live in a Markdown README with a numbered table of contents whose links are heading anchors, and the repository description itself says coding exercise questions are still coming, while the tree already contains three coding directories.