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Vendekin Technologies Interview Questions and Answers
9 Interview questions
map creates a new array with the results of calling a provided function on every element, forEach executes a provided function once for each array element.
map returns a new array with the results of the provided function, forEach does not return anything
map does not modify the original array, forEach can modify the original array
Example: const numbers = [1, 2, 3]; numbers.map(num => num * 2); // returns [2, 4, 6];...
Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
Start with two initial numbers, usually 0 and 1
Add the previous two numbers to get the next number in the sequence
Repeat this process to generate the Fibonacci series
Find missing element in array of strings
Iterate through the array and check for missing elements
Use a hash map to keep track of elements present in the array
Compare the elements in the array with a reference array to find the missing element
SQL SELECT queries retrieve data from a database, allowing for filtering, sorting, and aggregation of results.
Basic SELECT syntax: SELECT column1, column2 FROM table_name;
To select all columns: SELECT * FROM table_name;
Filtering results with WHERE: SELECT * FROM table_name WHERE condition;
Sorting results with ORDER BY: SELECT * FROM table_name ORDER BY column_name ASC|DESC;
Using aggregate functions: SELECT COUNT(*...
Swap two numbers without using a third variable in Java
Use XOR operation to swap two numbers without using a third variable
Example: int a = 5, b = 10; a = a ^ b; b = a ^ b; a = a ^ b; // Now a = 10, b = 5
Use a Set to remove duplicates from an array of strings.
Create a Set to store unique elements.
Iterate through the array and add each element to the Set.
Convert the Set back to an array to get the array without duplicates.
Program to reverse a list
Create an empty list to store the reversed elements
Iterate through the original list in reverse order
Append each element to the new list
Return the new list
Join queries in MySQL databases allow you to combine data from multiple tables based on a related column.
Use JOIN keyword to combine data from two or more tables based on a related column
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Specify the columns to be retrieved using SELECT statement
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
OOPS is based on four main concepts: encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation is the process of hiding the implementation details of an object from the outside world.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects...
Vendekin Technologies Interview Experiences
6 interviews found
Anonymous
I applied via Campus Placement and was interviewed before May 2022. There were 2 interview rounds.
(3 Questions)
- Q1. Introduce yourself?
- Ans.
I am a software engineering graduate with experience in programming languages like Java and Python.
Graduated with a degree in software engineering
Proficient in programming languages like Java and Python
Experience in developing web applications using frameworks like Spring and Django
- Q2. What is OOPS? Write a program for palindrome
- Ans.
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
OOPS is based on four main concepts: encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation is the process of hiding the implementation details of an object from the outside world.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects of d...
- Q3. Write program to reverse a list
- Ans.
Program to reverse a list
Create an empty list to store the reversed elements
Iterate through the original list in reverse order
Append each element to the new list
Return the new list
Interview Preparation Tips
- OOPS
- Java
- React
(5 Questions)
- Q1. Some questions based on accesibility of variables,methds,guess the output
- Q2. Hooks lifecycle
- Q3. Sql queries of select
- Q4. Join queries of mysql databases
- Ans.
Join queries in MySQL databases allow you to combine data from multiple tables based on a related column.
Use JOIN keyword to combine data from two or more tables based on a related column
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Specify the columns to be retrieved using SELECT statement
- Q5. Find missing ele in array
- Ans.
Find missing element in array of strings
Iterate through the array and check for missing elements
Use a hash map to keep track of elements present in the array
Compare the elements in the array with a reference array to find the missing element
Skills evaluated in this interview
Selected
I applied via Recruitment Consulltant and was interviewed in Sep 2023. There was 1 interview round.
(3 Questions)
- Q1. Fibonacci series on java
- Ans.
Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
Start with two initial numbers, usually 0 and 1
Add the previous two numbers to get the next number in the sequence
Repeat this process to generate the Fibonacci series
- Q2. Javascript map and forEach difference
- Ans.
map creates a new array with the results of calling a provided function on every element, forEach executes a provided function once for each array element.
map returns a new array with the results of the provided function, forEach does not return anything
map does not modify the original array, forEach can modify the original array
Example: const numbers = [1, 2, 3]; numbers.map(num => num * 2); // returns [2, 4, 6]; numb...
- Q3. Your favourite Css properties need to explain and give demo of it
Interview Preparation Tips
Skills evaluated in this interview
27 Mayur Jadhav
I applied via Job Portal
(2 Questions)
- Q1. Tell me about your self
- Q2. Javasctipt que basic and advance
Interview Preparation Tips
Aptitude and c++ combine test
(2 Questions)
- Q1. 1.swap two number without using third variable
- Ans.
Swap two numbers without using a third variable in Java
Use XOR operation to swap two numbers without using a third variable
Example: int a = 5, b = 10; a = a ^ b; b = a ^ b; a = a ^ b; // Now a = 10, b = 5
- Q2. Remove duplicate in array
- Ans.
Use a Set to remove duplicates from an array of strings.
Create a Set to store unique elements.
Iterate through the array and add each element to the Set.
Convert the Set back to an array to get the array without duplicates.
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Tell us about your self
- Q2. Ques on javaScript
Interview Preparation Tips
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Interview Questionnaire
2 Questions
- Q1. Bootstrap
- Q2. Javascript
Interview Questionnaire
3 Questions
- Q1. 1. Basic html schemantics
- Q2. 2. Pure JS
- Q3. 3. Angular advance
Interview Preparation Tips
I applied via LinkedIn
Interview Questionnaire
1 Question
- Q1. Questions on basic html,css,javascript,angular
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. What is event bubling
- Ans.
Event bubbling is the process of propagating an event from the innermost element to its parent elements in the DOM hierarchy.
Events in JavaScript are triggered on elements and then propagate up the DOM tree.
During event bubbling, an event triggered on a child element will also trigger on its parent elements.
This allows for event delegation, where a single event handler can be used for multiple elements.
Event.stopPropag...
Skills evaluated in this interview
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