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OodlesTechnologies Front end Developer Interview Questions, Process, and Tips
Top OodlesTechnologies Front end Developer Interview Questions and Answers
- Q1. What is the return type of the getElementsByClassName method in JavaScript?
- Q2. Is Javascript single thread or multithread?
- Q3. What are the data types in JavaScript?
OodlesTechnologies Front end Developer Interview Experiences
6 interviews found
Rajat Soni
(1 Question)
- Q1. Bascis of javascipt and react.js questions.
(1 Question)
- Q1. Basic of node.js and basic mongo queries
Aptitutde test was easy asking qued about web technologies
(1 Question)
- Q1. Questions were about javascript mainly.
Interview Preparation Tips
I appeared for an interview in Jun 2021.
(5 Questions)
Round duration - 60 minutes
Round difficulty - Medium
Technical Interview round with questions based on Javascript mainly.
- Q1. What are the data types in JavaScript?
- Ans.
JavaScript data types include string, number, boolean, object, function, undefined, and null.
String: 'hello'
Number: 42
Boolean: true or false
Object: { key: 'value' }
Function: function() { }
Undefined: undefined
Null: null
- Q2. What is the typeof() operator in JavaScript?
- Ans.
typeof() operator in JavaScript is used to determine the data type of a variable or expression.
typeof() returns a string indicating the type of the operand.
Example: typeof 42 will return 'number'.
Example: typeof 'hello' will return 'string'.
- Q3. What is the return type of the getElementsByClassName method in JavaScript?
- Ans.
The return type of getElementsByClassName method in JavaScript is an array of elements.
The method returns an array of elements that have a specified class name.
The elements are returned in the order they appear in the document.
If no elements are found with the specified class name, an empty array is returned.
- Q4. Is JavaScript single-threaded or multi-threaded?
- Ans.
JavaScript is single-threaded.
JavaScript is single-threaded, meaning it can only execute one piece of code at a time.
This is because JavaScript runs in the browser's main thread, which is responsible for handling user interactions, rendering, and running JavaScript code.
Asynchronous operations in JavaScript, such as AJAX requests and setTimeout, allow for non-blocking code execution without the need for multi-threading...
- Q5. Can you explain the Async/Await function in JavaScript?
- Ans.
Async/Await is a feature in JavaScript that allows for easier handling of asynchronous code.
Async/Await is built on top of Promises and provides a more readable and concise way to work with asynchronous code.
The 'async' keyword is used to define a function as asynchronous, allowing the use of 'await' inside it to pause execution until a Promise is settled.
Using Async/Await can help avoid callback hell and make code mor...
(2 Questions)
Round duration - 60 minutes
Round difficulty - Easy
Technical Interview round with questions based on Angular mainly.
- Q1. How does one share data between components in Angular?
- Ans.
Data can be shared between components in Angular using services, input/output properties, and observables.
Use services to create a shared data service that can be injected into multiple components
Use input/output properties to pass data from parent to child components
Use observables to create a data stream that can be subscribed to by multiple components
- Q2. What are the different types of data binding in Angular?
- Ans.
Types of data binding in Angular include interpolation, property binding, event binding, two-way binding.
Interpolation: {{ data }}
Property binding: [property]="data"
Event binding: (event)="function()"
Two-way binding: [(ngModel)]="data"
Interview Preparation Tips
Tip 1 : Just start a small project and watch tutorials and implement them in your project.
Tip 2 : Start from a simple todolist app and then build a small simple shopping cart app. You can use a hard-coded json data for displaying items. It should be enough.
Tip 3 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Interview Questionnaire
16 Questions
- Q1. Basics of javascript.
- Q2. Javascript data types
- Q3. Javascript typeof() method
- Ans.
The typeof() method in JavaScript returns the data type of a variable or expression.
typeof() returns a string indicating the type of the operand.
It can be used with variables, literals, or expressions.
Common return values include 'number', 'string', 'boolean', 'object', 'function', and 'undefined'.
- Q4. Javascript prototype
- Q5. Javascript getelementbyclass return type
- Q6. Is Javascript single thread or multithread?
- Ans.
Javascript is single-threaded.
Javascript runs on a single thread called the event loop.
This means that it can only execute one task at a time.
However, it can delegate tasks to other threads using web workers.
This allows for parallel processing without blocking the main thread.
- Q7. Async await in Javascript
- Ans.
Async/await is a syntax for writing asynchronous code in a synchronous way.
Async/await is built on top of Promises.
Async functions always return a Promise.
Await can only be used inside an async function.
Async/await makes code easier to read and write compared to using callbacks or Promises.
- Q8. Angular lifecyclehooks
- Q9. Angular ngOninit() lifecycle
- Q10. Angular router
- Q11. Angular databinding techniques
- Q12. Aot compiler
- Q13. Angular Http intercepter
- Q14. Angular state management/passing data between components/rxjs library operators
- Q15. Intercepter vs class
- Ans.
Intercepter and class are both used in JavaScript, but serve different purposes.
Intercepter is used to intercept and modify HTTP requests and responses.
Class is used to create objects with properties and methods.
Intercepter is commonly used in frameworks like Angular and React.
Class is a fundamental concept in object-oriented programming.
Intercepter can be used to add authentication headers to requests.
Class can be use...
- Q16. Angular forms/reactive forms
Interview Preparation Tips
Skills evaluated in this interview
OodlesTechnologies interview questions for designations
Selected
I applied via Naukri.com and was interviewed before Jun 2022. There were 4 interview rounds.
Basic to intermediate questions on javascript
(2 Questions)
- Q1. What do you understand by z index
- Ans.
z index determines the stacking order of elements on a webpage.
z index is a CSS property that specifies the stack order of an element
Elements with a higher z index value will be displayed on top of elements with a lower value
Default z index value is 0, negative values are allowed
z index only works on positioned elements (position: relative, absolute, fixed)
- Q2. What is difference between position relative and absolute
- Ans.
Position relative is relative to its normal position, while position absolute is relative to its nearest positioned ancestor.
Position relative moves an element relative to its normal position.
Position absolute moves an element relative to its nearest positioned ancestor.
Position absolute elements are taken out of the normal flow of the document.
Design a carousel using jQuery and css
Skills evaluated in this interview
Get interview-ready with Top OodlesTechnologies Interview Questions
I applied via Naukri.com and was interviewed in Aug 2021. There was 1 interview round.
(2 Questions)
- Q1. I don't know how much number will be required
- Q2. Ask to sql. html and css java script
Interview Preparation Tips
ding round that can apply it
Top trending discussions
Interview questions from similar companies
Front end Developer Interview Questions & Answers
Tudip Technologies
Anonymous
posted on 18 Sep 2022
I applied via Job Portal and was interviewed in Aug 2022. There were 2 interview rounds.
(1 Question)
- Q1. JWT authentication and authorisation.
(1 Question)
- Q1. Run tasks on Code Sandbox
- Ans.
Code Sandbox allows running tasks for front-end development
Open Code Sandbox and create a new project
Add necessary dependencies and files
Run tasks using npm scripts or command line
Examples: build, start, test
Interview Preparation Tips
Skills evaluated in this interview
Front end Developer Interview Questions & Answers
Tudip Technologies
Anonymous
posted on 10 Aug 2022
I applied via AmbitionBox and was interviewed in Jul 2022. There were 4 interview rounds.
In aptitude test there are multiple choice questions . mathematics ,logical,regening etc
(3 Questions)
- Q1. Introduction your self? Good morning sir,mam Thank you for giving me this opportunity to introduce myself My name is mamta. I am from butibori in Maharashtra I am completed my bachelor degree in computer...
- Q2. Why java is independent?
- Ans.
Java is independent because of its platform-independent nature.
Java code is compiled into bytecode which can run on any platform with a JVM.
It follows the 'Write Once, Run Anywhere' (WORA) principle.
Java's platform independence is achieved through its architecture and class libraries.
Java's platform independence makes it a popular choice for developing cross-platform applications.
- Q3. What is final keywords?
- Ans.
final keyword is used in Java to make a variable, method or class unchangeable or unextendable.
final variables cannot be reassigned
final methods cannot be overridden
final classes cannot be extended
final keyword is used for optimization in Java
final keyword is used to ensure immutability in Java
I am completed servey in ration card
Interview Preparation Tips
- Core Java
Skills evaluated in this interview
I appeared for an interview before Mar 2021.
Round duration - 30 minutes
Round difficulty - Medium
This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
In this test round, 2 coding questions were given. Either write the code or pseudo code
- Q1.
N Queens Problem
Given an integer
N, find all possible placements ofNqueens on anN x Nchessboard such that no two queens threaten each other.Explanation:
A queen can attack another queen if they ar...
- Ans.
The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.
Use backtracking algorithm to explore all possible configurations.
Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.
Generate all valid configurations and print them out.
- Q2.
Sort 0 1 2 Problem Statement
Given an integer array
arrof size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.Input:
The first line contains an integer 'T' representing the n... - Ans.
Sort an array of 0s, 1s, and 2s in linear time complexity.
Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.
Swap elements based on the values encountered to sort the array in-place.
Time complexity should be O(N) and space complexity should be O(1).
(2 Questions)
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round with questions on DSA.
- Q1.
Reverse Words in a String: Problem Statement
You are given a string of length
N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o... - Ans.
Reverse words in a string while handling leading, trailing, and multiple spaces.
Split the input string by spaces to get individual words
Reverse the order of the words
Join the reversed words with a single space in between
- Q2.
Circular Linked List Detection
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Note:
- A linked list is considered circula...
- Ans.
Detect if a given linked list is circular by checking if it forms a closed loop.
Traverse the linked list using two pointers, one moving at double the speed of the other.
If the two pointers meet at any point, the linked list is circular.
If the faster pointer reaches the end of the list (NULL), the linked list is not circular.
Round duration - 30 minutes
Round difficulty - Easy
HR round with typical behavioral problems.
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jun 2021. There were 3 interview rounds.
Not hard
(2 Questions)
- Q1. On java sql and related
- Q2. Interview questions on java , SQL and basic queries on joins and coding questions on string manipulation and linked list . Also they ask about trees and graphs.
(1 Question)
- Q1. Common HR questions and related
Interview Preparation Tips
- Java
- SQL
OodlesTechnologies Interview FAQs
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OodlesTechnologies Front end Developer Interview Process
based on 4 interviews
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OodlesTechnologies Front end Developer Reviews and Ratings
based on 15 reviews
Rating in categories
|
Front end Developer
89
salaries
|  ₹2 L/yr - ₹7 L/yr |
|
Associate Consultant
63
salaries
| ₹1.8 L/yr - ₹6 L/yr |
|
Associate Development Consultant
59
salaries
| ₹2 L/yr - ₹7.6 L/yr |
|
Senior Associate Consultant
49
salaries
| ₹3 L/yr - ₹10 L/yr |
|
Associate Consultant Developer
43
salaries
| ₹1.2 L/yr - ₹7 L/yr |
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