React.js Online Test

Topics covered

Mounting Method, Render Function, Password Principles, Component Optimize, Default Values for Properties, Handling Events, React Facts

  • MAQ (Multiple Answer Question)
  • MCQ (Multiple Choice Question)
  • Descriptive Question
  • White Board Simulator
  • Coding Simulator
  • Audio Question
  • Video Question
  • Case Study Question

React.js is an open-source JavaScript library used for building reusable UI components which present data which changes over time. React.js allows developers to create large web-applications that use data and can change over time without reloading the page. It aims primarily to provide speed, simplicity, and scalability. React processes only user interfaces in applications.

React.js online test is created & validated by experienced subject matter experts (SMEs) to assess React.js skills of candidates as per industry standards. Online React.js test helps recruiters and hiring managers to evaluate the expertise of candidates in creating interactive UIs using React.js.

The React.js assessment test helps to screen the candidates who possess traits as follows: 

Knowledge of core web fundamentals: HTML, JavaScript, and CSS
Thorough understanding of React.js and its core principles
Experience with popular React.js workflows (such as Flux or Redux)
Experience with data structure libraries

Our React.js skills test reports will give a detailed analysis of each candidate and will provide the analytical data which helps you to hire better and faster. To know about the candidate experience, we have introduced the new feature called candidate feedback module in our React.js pre-employment test so that it will ensure you that the candidates are getting an excellent experience while attempting the test.

This pre-employment test is useful for hiring:
  • React.js Developer
  • JavaScript Developer – React.js
  • Front End Developer – React.js
  • React.js Consultant
  • Fullstack Developer – React.js

Test details:

The React.js online test enables employers and recruiters to identify potential prospects by evaluating working skills and job readiness. For this reason, the emphasis is laid upon evaluating the knowledge of applied skills gained through real work experience, rather than theoretical knowledge.

The online React.js test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blank, Descriptive, Whiteboard Questions, Audio / Video Questions, True or False.

Test Duration: 20 minutes

20 Application Questions

React.js Online Test

Question #1 of 3

Which can change the state of the component?

Note: There can be multiple correct answers to this question.

    • forceUpdate

    • setState

    • updateState

    • None of the mentioned

Question #2 of 3

What is the role of shallowCompare?

Note: There can be multiple correct answers to this question.

    • performs a shallow equality check on the current props and nextProps objects as well as the current state and nextState objects.

    • returns false if the shallow comparison for props or state fails and therefore the component should update

    • iterates on the keys of the objects being compared and returning true when the values of a key in each object are not strictly equal.

Question #3 of 3

Which statements are true regarding render()?

Note: There can be multiple correct answers to this question.

    • If the React element was previously rendered into the container, this will perform an update on it and only mutate the DOM as necessary to reflect the latest React element.

    • If the optional callback is provided, it will be executed after the component is created.

    • If the optional callback is provided, it will be executed after the component is rendered or updated.

    • Render a React element into the DOM in the supplied container and return a reference to the component.

Candidate Name
Assessment Name
Invited by
Assessment Date
IP Address
Status








24.00 Out of 40.00
Pass
60%
03
23 Minutes

Java EE

9/10

Hibernate

3/10

Oracle PL/SQL

7/10

Analytical Thinking

5/10

Note:If score<= 30% then its a Weakness. If score >=70% then its a Strength.

Strengths

Java EE, Oracle PL/SQL, Analytical Thinking

Weaknesses

Hibernate

Sign up for a free trial today

Get your free trial and test up to 10 candidates. No strings attached. No credit card required.

SIGN UP FOR FREE

Schedule a Demo

How Interview Mocha works?

  • Add this test to your account

  • Invite candidates to take this test online

  • Candidates take the test

  • View and share actionable test reports

Trusted by leading brands worldwide

  • altran
  • credit suisse
  • sephora
  • nielsen
  • capgemini
  • hexaware
Why hiring managers and recruiters across the globe love Interview Mocha
  • Largest number of ready pre-employment skill tests
  • Relevant test compositions and quality questions designed by Subject Matter Experts (IM SME)
  • Fastest custom test creation DNA
  • World’s most super easy skill assessment platform
  • High level of platform security implementation
  • Friendly and quick customer support
  • Ready to listen and implement your feedback, we are all ears
  • Affordable pricing

Sign up for a free trial today

Get your free trial and test up to 10 candidates. No strings attached. No credit card required.

SIGN UP FOR FREE

Schedule a Demo