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Walmart Senior UI Software Engineer Interview Questions and Answers
Walmart Senior UI Software Engineer Interview Experiences
1 interview found
Anonymous
I applied via Instahyre and was interviewed in Feb 2024. There was 1 interview round.
(5 Questions)
- 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. Theoretical Questions on React like Code splitting, Virtual DOM, useCallback etc.
- Q3. 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 refere
- Q4. 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.
- Q5. Currying related problem. Implement sum(1)(2)(3)()
Interview Preparation Tips
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Top trending discussions
Interview questions from similar companies
Selected
I applied via Approached by Company and was interviewed in Oct 2024. There were 4 interview rounds.
2 DSA questions and some MCQ on Java and Spring
(2 Questions)
- Q1. Longest palindromic substring
- Ans.
A palindromic substring is a string that reads the same forwards and backwards.
Use dynamic programming to find the longest palindromic substring.
Start by considering each character as the center of a potential palindrome.
Expand outwards from each center to check for palindromes of odd and even lengths.
- Q2. Remove duplicates in place from a 1D array
- Ans.
Remove duplicates from a 1D array of strings in place
Iterate through the array and use a HashSet to keep track of unique elements
Replace duplicates with null or an empty string to remove them in place
(3 Questions)
- Q1. Project discussion
- Q2. Search min element in a rotated sorted array with duplicate elements
- Ans.
Search for the minimum element in a rotated sorted array with duplicate elements.
Use binary search to find the minimum element in the rotated sorted array.
Handle the case where duplicate elements are present by adjusting the search conditions.
Consider cases where the array is not rotated or contains only one element.
- Q3. Ways of declaring singleton class
- Ans.
A singleton class is a class that can only have one instance created throughout the application.
Declare a private static instance variable of the class
Create a private constructor to prevent external instantiation
Provide a public static method to access the instance
(2 Questions)
- Q1. Project discussion
- Q2. Behavioural questions
Skills evaluated in this interview
Associate Software Engineer Interview Questions & Answers
MedPlus
Saksham raj thakur
posted on 19 Oct 2024
Good question but very simple to answer
(2 Questions)
- Q1. Cooding question
- Q2. About project you did in colly
Interview Preparation Tips
(1 Question)
- Q1. Scenerio based questions
(3 Questions)
- Q1. Linked List Intersection Point
- Ans.
Find the intersection point of two linked lists.
Use two pointers to traverse the linked lists
Calculate the difference in length between the two lists
Move the pointer of the longer list ahead by the difference
Move both pointers simultaneously until they meet at the intersection point
- Q2. Basic Spring Boot
- Q3. Stream and Java 8 Questions
Skills evaluated in this interview
Varsha Pissey
I applied via Recruitment Consulltant and was interviewed before Apr 2023. There were 3 interview rounds.
Was easy to crack infact was simple
Involve group of 8 and related to come and pros
(1 Question)
- Q1. What are software testing techniques
- Ans.
Software testing techniques are methods used to ensure that software applications are functioning correctly and meeting requirements.
Black box testing: Testing the functionality of a software application without knowing its internal code.
White box testing: Testing the internal code and structure of a software application.
Unit testing: Testing individual units or components of a software application.
Integration testing:...
I applied via Walk-in and was interviewed in Oct 2024. There were 2 interview rounds.
(2 Questions)
- Q1. System Design Questions, Situation based problems of system design
- Q2. Data Structure Coding question of HashMap
(1 Question)
- Q1. Again System design, Question from your project and architecture of your project
2 Coding pseudocode questions and mcqs on basic CS topics
Selected
I applied via Campus Placement and was interviewed in Dec 2022. There were 3 interview rounds.
I like to choose topics java, c, python, html etc
About java, python, c, c++, html and about coding language
Hoe to built skill discussion about problem and how solve it
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Jul 2024. There were 4 interview rounds.
(2 Questions)
- Q1. React js questions like Dom manipulation, useCallback and useMemo these kind of questions
- Q2. Create some dynamic buttons with a json data and whenever you click on that you need to maintain active and inactive states and also you need to show the content of the button based on the json data whenev...
- Ans.
Create dynamic buttons with JSON data, maintain active/inactive states, and show content on click
Create buttons dynamically using JSON data
Toggle between active and inactive states on click
Display button content based on JSON data on click
(2 Questions)
- Q1. More advanced react based questions like test cases handling and redux state management techniques
- Q2. Prop drilling concepts
(1 Question)
- Q1. More about your projects you have worked on and also front end technical basic questions
(2 Questions)
- Q1. Why Lowe's only
- Ans.
Lowe's is a leading home improvement retailer with a strong focus on technology and innovation.
Lowe's has a strong reputation for investing in technology and innovation within the home improvement industry.
I am impressed by Lowe's commitment to digital transformation and their use of cutting-edge tools and technologies.
I believe Lowe's offers a challenging and rewarding environment for software engineers to grow and de...
- Q2. What are your expectations here nd all
- Ans.
I expect a challenging work environment, opportunities for growth, and a supportive team.
Challenging work that allows me to utilize my skills and learn new technologies
Opportunities for career advancement and professional development
A supportive team that fosters collaboration and growth
Clear communication and expectations from management
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