Wingify Interview Questions and Answers

Q1. Tell me about yourself and your journey so far
Add your answer
Q2. Why did you choose sales ?
Add your answer

Sales simulation round wherein you will be given a case study in advance. You have to do a discovery call for a potential wingify customer

First round had around 25 multipl;e choice question on dsa,html,css,javascript,network security

Q1. Second was a telephonic round mainly for accessing the communication skill.
Add your answer
Q2. Tell me about yoyself,about your projects and why do prefer this role.
Add your answer

Q1. Technical round,questions based on html,css,javascript,Jquery,api
Add your answer

Q1. Technical interview 2 first they started with asking questions on their product VWO,and again went back to html,css,javascript,jquery
Add your answer

Q1. Find the maximum distance between any two leaf nodes of a binary tree.
Add your answer
Q2. Design least recently used cache.
Add your answer
Q3. You are given a student table having columns as id, name, and score. find the top 20 percentile of student's details based on their score.
Ans. 
Calculate top 20 percentile of student details based on score in a student table.
• Calculate the 80th percentile score using formula: 80th_percentile = 0.8 * total_students

• Sort the scores in descending order and find the score at 80th percentile position

• Retrieve student details with scores greater than or equal to the 80th percentile score
Answered by AI
Add your answer

About 5 coding problems that were quite easy.

I remember a LCM and queue related question.

I solved 4/5 questions and got shortlisted for next round.

Asked me to rate myself in Javascript.

Then asked to do level order traversal of a dom element in javascript.

Then asked about temporal dead zone and promises.

Asked one DSA question that I solved using C++

Q1. SQL join question Computer network-related questions OS question -> What is starvation and what is the solution? Parallelism vs concurrency? What is a cookie? Difference between interface and abstract clas...read more
Add your answer

2 easy DSA questions to be solved using Javascript

Q1. Custom implementation of array flat method
Ans. 
Custom implementation of array flat method
• Create a function that takes an array as input

• Iterate through each element of the array

• If an element is an array, recursively call the function on that element

• If an element is a string, add it to the result array

• Return the result array
Answered by AI
Add your answer
Q2. Explain memoization and write fibonacci code using memoization
Ans. 
Memoization is a technique to optimize function calls by caching their results.
• Memoization is used to store the results of expensive function calls and return the cached result when the same inputs occur again.

• It improves performance by avoiding redundant computations.

• Fibonacci sequence is a classic example to demonstrate memoization.

• Memoization can be implemented using an object or an array to store the cached results...read more
Answered by AI
Add your answer
Q3. Frontend concepts like closures, debounce, React hooks and lifecycle, graphql, web workers, service workers etc.
Add your answer

DSA questions on array, strings and linkedlist asked medium level of dsa questions.

Q1. Javascript intervew questions and react.js interview questions.
Add your answer
Q2. What is difference between == and ===
Add your answer
Q3. What is async await
Add your answer
Q4. Tell me about IIFE
Ans. 
IIFE is a JavaScript function that runs as soon as it is defined, providing a way to create a local scope.
• IIFE stands for Immediately Invoked Function Expression.

• Syntax: (function() { /* code */ })();

• Used to create a private scope, avoiding global variable pollution.

• Commonly used for module patterns and encapsulating code.

• Example: (function() { var privateVar = 'I am private'; console.log(privateVar); })();
Answered by AI
View 1 more answer
Q5. What is call back hell in javascript
Add your answer