Senior UI Software Engineer

filter-iconFilter interviews by

Senior UI Software Engineer Interview Questions and Answers

Updated 22 Mar 2024

Q1. React Coding to implement Stop watch with Start, Stop, Resume, Pause

Ans.

Implement a React stopwatch with start, stop, resume, and pause functionalities.

  • Use state to track the elapsed time

  • Create functions for start, stop, resume, and pause actions

  • Use setInterval for updating the timer every second

  • Display the timer in the UI

Q2. How does memory leak happen in Javascript

Ans.

Memory leaks in JavaScript happen when unused objects are not properly released from memory.

  • Memory leaks can occur when variables are not properly dereferenced, preventing garbage collection.

  • Closures can also lead to memory leaks if they hold references to large objects.

  • Event listeners can cause memory leaks if not removed properly after use.

  • Using setInterval without clearing it can lead to memory leaks.

  • Circular references can also cause memory leaks in JavaScript.

Q3. Error Handling component in React

Ans.

Error handling in React involves creating a component to display error messages and handling errors gracefully.

  • Create an ErrorBoundary component to catch errors in child components.

  • Use try-catch blocks in async functions to handle errors.

  • Display error messages to the user using state or props.

  • Use error boundaries to prevent the entire UI from crashing due to a single error.

Senior UI Software Engineer Jobs

Senior Software Engineer - UI Developer - Angular 4-8 years
NEST DIGITAL PRIVATE LIMITED
3.6
Bangalore / Bengaluru
Senior Software Engineer UI 3-6 years
Harness.io
4.2
Bangalore / Bengaluru
Practo - Senior Software Engineer - UI Development (4-10 yrs) 4-10 years
Practo Technologies Pvt Ltd
3.1
Are these interview questions helpful?
Interview Tips & Stories
Ace your next interview with expert advice and inspiring stories

Interview experiences of popular companies

3.7
 • 387 Interviews
View all

Calculate your in-hand salary

Confused about how your in-hand salary is calculated? Enter your annual salary (CTC) and get your in-hand salary

Recently Viewed
REVIEWS
Accenture
No Reviews
REVIEWS
Accenture
No Reviews
JOBS
Browse jobs
Discover jobs you love
INTERVIEWS
IFB
No Interviews
DESIGNATION
DESIGNATION
DESIGNATION
Senior UI Software Engineer Interview Questions
Share an Interview
Stay ahead in your career. Get AmbitionBox app
qr-code
Helping over 1 Crore job seekers every month in choosing their right fit company
65 L+

Reviews

4 L+

Interviews

4 Cr+

Salaries

1 Cr+

Users/Month

Contribute to help millions

Made with ❤️ in India. Trademarks belong to their respective owners. All rights reserved © 2024 Info Edge (India) Ltd.

Follow us
  • Youtube
  • Instagram
  • LinkedIn
  • Facebook
  • Twitter