Eccentric Engine Front end Developer Interview Questions and Answers

Q1. Basic react and javascipt
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Q2. Detail leaning about the current project
Ans. 
The current project involves developing a React JS frontend for a web application.
• The project focuses on creating a user-friendly interface using React components.

• Implementing state management with tools like Redux or Context API.

• Integrating with backend APIs to fetch and display data on the frontend.

• Optimizing performance by lazy loading components and using memoization techniques.
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Q1. Culture fit and proformace enchancement in current project
Ans. 
Culture fit and performance enhancement are crucial for success in the current project.
• Creating a positive and inclusive work environment can improve culture fit.

• Encouraging open communication and collaboration among team members.

• Providing opportunities for professional development and growth.

• Recognizing and rewarding individual and team achievements.

• Regularly seeking feedback from team members to identify areas for im
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Q1. Debouncing code ,
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Q2. Loops, arrays, objects, data types
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Q3. JS inbuilt methods like split reverse join etc
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Ask question about js and react js

Q1. Feature has to implement
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Round duration - 90 Minutes
Round difficulty - Easy

It was in in the evening at 5pm, it was simple with 20 mcqs on java,dbms,os.sql. And 2 coding questions.

Q1. 
Find Duplicates in an Array
Given an array ARR of size 'N', where each integer is in the range from 0 to N - 1, identify all elements that appear more than once.
Return the duplicate elements in any orde...read more
Ans. Sorting
1. The most trivial approach would be to sort the array/list ‘ARR’ and then return the duplicates.
2. After sorting the array in non-decreasing order, do the following for all the elements from i = 0 to i = n - 2:
   • If ARR[i] == ARR[i + 1], then add ARR[i] to the the output list.
   • While ARR[i] == ARR[i + 1], do i = i + 1, since we don’t want to add the same duplicate elements again and again.
   • Else continue.
3. After this loop, w...read more
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Round duration - 45 Minutes
Round difficulty - Medium

It was afternoon.2 interviewers are present. What are forms and how to create forms in HTML? What are Entities and Relationships? What is an Alias in SQL?

Q1. 
Reverse the String Problem Statement
You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.
Example:
Input:
STR = "abcde"
Output:
"e...read more
Ans. Optimal Solution
• Traverse the string and swap the first character with the last character, the second character with the second last character and so on.
• Basically, you need to swap the i-th character with the (N-i-1)-th character where N is the length of the string and 0-based indexing is considered.
Space Complexity: O(1)Explanation:
O(1).
 
In the worst case, only constant extra space is required.
Time Complexity: O(...read more
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Q2. 
Implement Stack with Linked List
Your task is to implement a Stack data structure using a Singly Linked List.
Explanation:
Create a class named Stack which supports the following operations, each in O(1...read more
Ans. Best Approach
1. Maintain a linked list. Keep track of its head, and size at all times, and update them accordingly whenever a new operation is performed.
2. Following is the way we can implement all functions of the stack using linked list:
   1. First, initialize a head node, and the size of the list as NULL and 0 respectively.
   2. Then for push function, insert new elements at the head of the list, i.e. the new element will become the ...read more
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