Premium Employer

i

This company page is being actively managed by Zepto Team. If you also belong to the team, you can get access from here

Zepto Verified Tick

Compare button icon Compare button icon Compare

Filter interviews by

Clear (1)

Zepto Front end Developer Interview Questions, Process, and Tips

Updated 9 Dec 2022

Zepto Front end Developer Interview Experiences

1 interview found

I applied via Naukri.com and was interviewed in Nov 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - One-on-one 

(13 Questions)

  • Q1. What is denbouncer and throttle
  • Ans. 

    Debouncer and throttle are techniques used to limit the frequency of function calls.

    • Debouncing delays the execution of a function until a certain amount of time has passed without the function being called again.

    • Throttling limits the frequency of function calls to a certain rate, executing the function at fixed intervals.

    • Debouncing is useful for events that may be triggered multiple times in quick succession, such as r...

  • Answered by AI
  • Q2. What is curry function
  • Ans. 

    Currying is a technique of transforming a function that takes multiple arguments into a sequence of functions that each take a single argument.

    • Currying allows partial application of a function

    • It helps in creating reusable functions

    • Curried functions are easier to compose and chain

    • Example: const add = (a) => (b) => a + b; add(2)(3) returns 5

  • Answered by AI
  • Q3. Implement curry function
  • Ans. 

    Curry function is a higher-order function that allows partial application of arguments.

    • Currying transforms a function that takes multiple arguments into a series of functions that take one argument each.

    • It returns a new function until all the arguments are received and then executes the original function.

    • Example: const add = (a, b) => a + b; const curriedAdd = curry(add); curriedAdd(2)(3) returns 5.

  • Answered by AI
  • Q4. What is promise.all()
  • Ans. 

    promise.all() is a method that takes an array of promises and returns a new promise that resolves when all promises in the array have resolved.

    • It is used to handle multiple asynchronous operations simultaneously.

    • If any of the promises in the array rejects, the returned promise will be rejected with the reason of the first rejected promise.

    • The resolved values of the promises are returned as an array in the same order as

  • Answered by AI
  • Q5. What is memoization?
  • Ans. 

    Memoization is a technique of caching the results of a function to improve performance.

    • Memoization is used to avoid redundant calculations by storing the results of a function and returning the cached result when the same inputs occur again.

    • It is commonly used in recursive functions and functions with expensive computations.

    • Memoization can be implemented manually or by using libraries like Lodash or Memoizee.

    • Example: M...

  • Answered by AI
  • Q6. What is closure in javascript
  • Ans. 

    Closure is a function that has access to its parent scope even after the parent function has returned.

    • Closure allows for private variables and functions in JavaScript.

    • It is created when a function returns another function.

    • The inner function has access to the outer function's variables and parameters.

    • Example: function outer() { let x = 10; return function inner() { console.log(x); } }

    • The inner function can access and mo...

  • Answered by AI
  • Q7. What is the problem with colosures
  • Ans. 

    Closures can cause memory leaks if not handled properly.

    • Closures can hold references to variables outside of their scope, preventing them from being garbage collected.

    • If closures are used excessively or not released properly, they can cause memory leaks.

    • To avoid memory leaks, make sure to release closures when they are no longer needed.

  • Answered by AI
  • Q8. Some output questions on SetTimeout to check closure knowledge
  • Q9. React lifecycle events
  • Q10. Major difference between class based components and class based components
  • Ans. 

    There is no difference between class based components and class based components.

    • There seems to be a typo in the question.

    • Assuming the question is about functional components vs class components, the major difference is that class components use a class to define the component while functional components are defined as functions.

    • Class components have access to lifecycle methods while functional components do not.

    • Functi...

  • Answered by AI
  • Q11. Shallow copy vs deep copy
  • Ans. 

    Shallow copy only copies the reference to an object while deep copy creates a new object with a new memory address.

    • Shallow copy is faster and uses less memory than deep copy.

    • In shallow copy, changes made to the original object will reflect in the copied object as well.

    • Deep copy creates a completely new object with its own memory space.

    • In JavaScript, arrays and objects are assigned by reference, so a shallow copy will o...

  • Answered by AI
  • Q12. How to do deep copy ?
  • Ans. 

    Deep copy creates a new object with the same values as the original object.

    • Use Object.assign() method to create a deep copy of an object.

    • For nested objects, use recursion to copy all levels.

    • For arrays, use slice() method to create a new array with the same values.

    • Avoid using spread operator for deep copy as it only creates a shallow copy.

  • Answered by AI
  • Q13. What is hoisting? Some questions on it

Interview Preparation Tips

Interview preparation tips for other job seekers - Be thorough with closures, setTimeout, curry function, etc. The interview was taken by some third party company interview ector and not by Zepto itself

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Promises and Debounce
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

First round was a coding question with html, css, javascript to create 5 clickable boxes, change it's colors on click and update count

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. SSR vs CSR question was asked?
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

My mostly question were around node js frame works and other tools

Round 2 - One-on-one 

(2 Questions)

  • Q1. Case study for the question asked
  • Q2. Tell me something more about you
Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Feb 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Question are very tough and faad

Round 2 - Coding Test 

Question like trees linked list and graphs

Interview Preparation Tips

Interview preparation tips for other job seekers - Best of luck for your future

I was interviewed in Aug 2021.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 Minutes
Round difficulty - Easy

1 coding question which was quite easy. Some MCQ that includes basic questions related to html, css, javascript, oops, dbms and output.

  • Q1. 

    LRU Cache Design Question

    Design a data structure for a Least Recently Used (LRU) cache that supports the following operations:

    1. get(key) - Return the value of the key if it exists in the cache; otherw...

  • Ans. 

    Design a Least Recently Used (LRU) cache data structure that supports get and put operations with a given capacity.

    • Implement a doubly linked list to keep track of the order of keys based on their recent usage.

    • Use a hashmap to store key-value pairs for quick access and updates.

    • When capacity is reached, evict the least recently used item before inserting a new one.

    • Update the order of keys in the linked list whenever a ke

  • Answered by AI
Round 2 - Coding Test 

(2 Questions)

Round duration - 90 Minutes
Round difficulty - Easy

easy round. Had some frontend questions related to html ,css, js , etc Explain Closures in JavaScript. In how many ways can we specify the CSS styles for the HTML element?

  • Q1. 

    String Palindrome Verification

    Given a string, your task is to determine if it is a palindrome considering only alphanumeric characters.

    Input:

    The input is a single string without any leading or trailing...
  • Ans. 

    Check if a given string is a palindrome considering only alphanumeric characters.

    • Remove non-alphanumeric characters from the input string.

    • Compare the string with its reverse to check for palindrome.

    • Handle edge cases like empty string or single character input.

    • Use two pointers approach for efficient comparison.

  • Answered by AI
  • Q2. DBMS Questions

    normalization, indexing

  • Ans. 

    Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. Indexing is a technique to quickly retrieve data from a database.

    • Normalization helps in reducing data redundancy by breaking down tables into smaller, related tables.

    • Indexing is used to quickly retrieve data by creating indexes on columns in a table.

    • Normalization ensures data integrity by minimizing data dupli...

  • Answered by AI
Round 3 - Video Call 

(3 Questions)

Round duration - 120 Minutes
Round difficulty - Hard

late at 8.00 pm

  • Q1. 

    Priority CPU Scheduling Problem

    Given 'N' processes with their “burst times”, where the “arrival time” for all processes is ‘0’, and the ‘priority’ of each process, your task is to compute the “waiting ti...

  • Ans. 

    Implement Priority CPU Scheduling algorithm to compute waiting time and turn-around time for processes.

    • Implement a function that takes in burst times, priorities, and number of processes as input

    • Sort the processes based on priority, with lower process ID as tiebreaker

    • Calculate waiting time and turn-around time for each process based on the scheduling algorithm

  • Answered by AI
  • Q2. Can you explain the concept of data spooling in operating systems?
  • Ans. 

    Data spooling is a process where data is temporarily stored in a buffer before being sent to an output device.

    • Data spooling helps in managing the flow of data between different devices by storing it temporarily.

    • It allows for efficient processing of data by decoupling the input/output operations.

    • Examples of data spooling include print spooling, where print jobs are stored in a queue before being sent to the printer.

  • Answered by AI
  • Q3. What is the difference between inheritance and generalization in the context of database management systems?
  • Ans. 

    Inheritance is a relationship between a superclass and subclass, while generalization is a relationship between entities with common characteristics.

    • Inheritance involves a parent-child relationship where the child class inherits attributes and methods from the parent class.

    • Generalization involves grouping entities with common attributes into a higher-level entity.

    • Inheritance is a specific form of generalization in obje...

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI applied for the job as Frontend Developer in GurgaonEligibility criteriaabove 8 CGPAPaytm (One97 Communications Limited) interview preparation:Topics to prepare for the interview - DATA STRUCTURES, OOPS, DBMS, NETWORKING, ALGORITHMSTime required to prepare for the interview - 1 monthInterview preparation tips for other job seekers

Tip 1 : be confident
Tip 2 : make sure to talk less
Tip 3 : give precise answer

Application resume tips for other job seekers

Tip 1 : mention only relevant things
Tip 2 : be precise

Final outcome of the interviewRejected

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed before Aug 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

30mins aptitude test

Round 2 - Coding Test 

90 mins coding test for 3 questions

Round 3 - HR 

(2 Questions)

  • Q1. Why are you choosing this role
  • Ans. 

    I am choosing this role because of my passion for creating user-friendly and visually appealing websites.

    • Passion for front end development

    • Enjoy creating user-friendly interfaces

    • Excited about the creative aspect of web design

  • Answered by AI
  • Q2. Why should we write you
  • Ans. 

    I am a dedicated and skilled front end developer with a passion for creating user-friendly interfaces.

    • I have a strong understanding of HTML, CSS, and JavaScript

    • I have experience with responsive design and cross-browser compatibility

    • I am proficient in using front end frameworks like React and Angular

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Given a matrix zeros and ones find minimum distance for each one to a zero.
  • Ans. 

    Given a matrix of zeros and ones, find the minimum distance for each one to a zero.

    • Use breadth-first search (BFS) to find the minimum distance from each one to a zero.

    • Start by initializing a queue with all the zeros in the matrix.

    • While the queue is not empty, dequeue a zero and enqueue its neighboring ones.

    • Keep track of the distance from each one to the nearest zero.

    • Repeat until all ones have been visited.

    • Return the ma

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Coding a frontend UI from provided image. And creating a fucntional star rating system

Round 2 - Technical 

(2 Questions)

  • Q1. Designing a Component API in React using Typescript.
  • Ans. 

    Designing a Component API in React using Typescript involves defining props, state, and methods for the component.

    • Define the props interface to specify the expected input data for the component

    • Use typescript types to ensure type safety and prevent runtime errors

    • Define the state interface to manage the internal state of the component

    • Implement methods to handle user interactions and component logic

    • Document the component

  • Answered by AI
  • Q2. Create a function that can clear all the timer ids at once.
  • Ans. 

    Function to clear all timer ids at once

    • Create an array to store all timer ids

    • Iterate through the array and clear each timer id using clearTimeout() function

  • Answered by AI

Skills evaluated in this interview

Contribute & help others!
anonymous
You can choose to be anonymous

Zepto Interview FAQs

How many rounds are there in Zepto Front end Developer interview?
Zepto interview process usually has 2 rounds. The most common rounds in the Zepto interview process are Resume Shortlist and One-on-one Round.
What are the top questions asked in Zepto Front end Developer interview?

Some of the top questions asked at the Zepto Front end Developer interview -

  1. What is denbouncer and throt...read more
  2. Major difference between class based components and class based compone...read more
  3. What is the problem with colosu...read more

Recently Viewed

JOBS

Abita Innovations

No Jobs

REVIEWS

Acmegrade

No Reviews

JOBS

8 Hour HR Consultants

No Jobs

JOBS

Resopro Services

No Jobs

JOBS

InnoQuest Consulting

No Jobs

REVIEWS

Acmegrade

No Reviews

REVIEWS

MT Educare

No Reviews

COMPANY BENEFITS

MeritNation

No Benefits

JOBS

Learnedge Hub

No Jobs

INTERVIEWS

Zepto

No Interviews

Tell us how to improve this page.

Join Zepto We’re revolutionizing the way India shops.
Shift Incharge
403 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Team Lead
144 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Store Manager
137 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Senior Manager
129 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Store Incharge
95 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Explore more salaries
Compare Zepto with

Blinkit

3.7
Compare

Dunzo

3.4
Compare

BigBasket

3.9
Compare

Swiggy

3.8
Compare
Did you find this page helpful?
Yes No
write
Share an Interview