React Online Coding Tests

Create and send React coding tests in 60 seconds, even if you’re not techy.
Hand over qualified React candidates for your engineering team to interview.

Explore our tests for free

About our React coding tests 

We provide React code exams for your team that are realistic and useful, giving a precise assessment of candidates’ React skills. Even if you don’t have a technical background, you can develop React code tests in under a minute using tools like CoderPad Screen.

We have created our tests to precisely cover important ideas like object-oriented programming, data structures, algorithms, and more. Our industry specialists have carefully selected them to ensure their applicability to real-world situations and their efficacy in evaluating candidates’ talents.

There is an ability to modify the tests and add their own coding activities for hiring managers who wish to go further.

  • Recommended duration: 20-60 min
  • Average number of questions: 20
  • Type of exercises: Multiple choice, coding exercises
  • Test levels: Junior, Senior, Expert

ℹ️ Explore our questions bank and test our candidate experience yourself

React sample questions

Example Question 1

What is the difference between a class component and a functional component in React? What is the difference between a class component and a functional component in React?

Example Question 2

Your task is to create a working todo list with persistent data storage.


  1. Clicking on a todo item should toggle the “checked” state.
  2. The todo list state should be saved and loaded from local storage.
  3. Checked items should sink to the bottom of the list automatically

ℹ️ Preview a sample coding test report

Explore Code Playback

Obtain a deeper understanding of the problem solving thought process of your developer applicants.

  • Witness their proficiency in building algorithms and evaluate their approach to solving problems with them.
  • Jot down feedback from different segments of the interview to discuss in subsequent interview rounds.
  • Pay attention to detect and prevent any distasteful actions.

How to test React Skills to hire for your team?

Relying only on resumes may not accurately paint a broad picture of a React developer’s skills and abilities, and self-reported skills may be untrustworthy.

Here are five ways to assess React developers’ coding skills:

  • Examine their body of work. This provides you with more information about the kinds of React projects they have worked on and their level of language expertise.
  • Examine their GitHub account to judge the quality of their React code, their projects, and their participation in React-related projects.
  • Ask about their use of Stack Overflow or React communities in their day-to-day development to understand their knowledge level and participation in the React development community.
  • Employ the use of practical React focused programming exercises for React developers to allow them assess and improve their coding skills.
  • Conduct React-focused live coding interviews in which candidates can exhibit their coding skills, problem-solving talents, and understanding of React fundamentals.

💡 To dig deeper: 5 ways to test developers’ skills before hiring

How to approach initial candidate screening effectively?

Some recruiters are concerned that putting coding tests on candidates early in the interview process will intimidate potential prospects and discourage applications. However, good scenario management, such as clarifying the interview process and why it is vital, will help candidates comprehend the goal and feel at ease.

Here are some guidelines for you to ensure a positive candidate experience during early testing:

  1. Job Ad: Make certain that the advertisement includes every phase and expectation of the hiring process. As a result, the candidate will not feel singled out and will be able to fully prepare for the interview. It is also a good idea to convey the time limits involved in technical interviews ahead of time.
  1. Highlight Equal Opportunities and Diversity: Emphasize your company’s commitment to promote diversity and equal opportunity through the testing process. It must to be obvious that the major objective of the assessment is to fairly evaluate the candidate talents, regardless of history.
  1. Concise Assessment: Choose quality over quantity by keeping the assessment brief and focused on the skills required for the job. This is to eliminate any time wasting and ensure the candidates can attempt the exercise hitch-free. Ideally, aim for a test that can be completed within an hour or less without compromising any requirements.
  1. Relevance: By ensuring that the examinations only focus on the abilities that are specifically relevant to the position, redundancies can be avoided. Developers value candidates that show pragmatism by emphasizing practical abilities that have an impact on daily work.
  2. Feedback and Results: Provide applicants with performance comments after the testing phases. You may improve candidates’ experiences by using a product like CoderPad Screen, which automatically creates a concise report and sends it to them. Candidates who do poorly will be able to understand why they were passed over for the following round in this way.

We had no unified approach or tool to assess technical ability. Today, CoderPad Screen enables us to test against a wide selection of languages and is continually updated.

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