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I applied via Naukri.com and was interviewed before Jun 2020. There were 3 interview rounds.
Debugging a memory leak issue in a web application
Identified the source of the memory leak using Chrome DevTools
Reviewed the code and found that a large amount of data was being stored in memory unnecessarily
Implemented a solution to clear the unnecessary data from memory after use
Tested the application thoroughly to ensure the issue was resolved
Ajax is used to send and receive data from a server without refreshing the page. Parameters, content type, and datatype are important in Ajax requests.
Ajax is a technique for creating fast and dynamic web pages.
Parameters in Ajax are used to pass data to the server.
Content type specifies the format of the data being sent to the server.
Datatype specifies the format of the data that is expected to be returned from the se...
Routing in MVC is the process of mapping URLs to controller actions.
Routes are defined in the RouteConfig.cs file
Routes can include parameters that are passed to the controller action
Routes can be customized to handle different URL patterns
Routing can be used to create SEO-friendly URLs
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posted on 24 Oct 2023
I applied via Approached by Company and was interviewed before Oct 2022. There were 3 interview rounds.
Find duplicate items in array of strings.
Iterate through array and store each item in a hash set.
If item already exists in hash set, it is a duplicate.
Palindrome code should be designed to check if a given string is the same forwards and backwards.
Create a function that takes a string as input
Remove any spaces and punctuation from the string
Reverse the string and compare it to the original string to check if it is a palindrome
ES6 introduced several new features and improvements to JavaScript, making it more powerful and efficient.
Arrow functions for more concise syntax
Let and const for block-scoped variables
Classes for easier object-oriented programming
Template literals for easier string interpolation
Default parameters and rest parameters for function arguments
Destructuring assignment for easier data extraction
Promises for asynchronous prog
Yes, let and const variables are hoisted but not initialized.
let and const variables are hoisted to the top of their block scope, but they are not initialized until the actual line of code is executed.
This means that you cannot access a let or const variable before it is declared in the code.
For example, trying to access a let variable before it is declared will result in a ReferenceError.
Global context refers to the overall environment or setting in which something exists or operates.
Global context encompasses all variables, functions, and objects that are accessible throughout an entire program.
It can be thought of as the 'big picture' view of a program's execution.
In web development, global context includes the window object in JavaScript.
Temporal dead zone is a period during the variable creation process where accessing the variable results in a ReferenceError.
Occurs when trying to access a variable before it has been declared with let or const
Happens due to the variable being in the temporal dead zone until it is declared
Example: accessing a variable before its declaration will result in a ReferenceError
Modules in Node.js are reusable blocks of code that encapsulate related functionality.
Modules in Node.js can be built-in modules like fs (file system) or third-party modules like express.
Modules help in organizing code into separate files for better maintainability and reusability.
Modules can be imported using the require() function in Node.js.
Indexes in MongoDB improve query performance by allowing the database to quickly locate and retrieve specific documents.
Indexes help to speed up query performance by allowing the database to quickly locate specific documents based on the indexed fields.
Without indexes, MongoDB would have to perform a collection scan, which can be slow and resource-intensive.
Indexes can be created on single fields or compound fields to ...
Hooks are a feature in React that allow you to use state and other React features in functional components. useRef is a hook that allows you to create a mutable object that persists for the lifetime of the component.
Hooks are used to add state and lifecycle methods to functional components in React
useRef is used to create a mutable reference that persists between renders
useRef can be used to access DOM elements directl
Mongoose is an Object Data Modeling (ODM) library for MongoDB that provides a higher level of abstraction and simplifies interactions with the database.
Mongoose provides schema validation which helps maintain data integrity.
Mongoose simplifies querying and data manipulation with built-in functions.
Mongoose supports middleware functions for pre and post processing of data operations.
posted on 9 Jan 2025
I was interviewed in Dec 2024.
A function is a piece of code that is called by name, while a method is a function that is associated with an object.
Functions are standalone blocks of code, while methods are functions that are part of a class or object.
Functions can be called independently, while methods are called on an object.
Functions do not have access to data stored in an object, while methods can access and modify object data.
posted on 16 Dec 2024
I applied via Campus Placement and was interviewed in Nov 2024. There were 2 interview rounds.
The aptitude test was relatively straightforward, consisting of both aptitude and technical questions, with a difficulty level ranging from easy to medium.
I was interviewed in Nov 2024.
The aptitude test evaluates problem-solving, coding skills, and logical reasoning, offering a fair challenge to showcase technical expertise.
I address conflicts in team projects by promoting open communication, active listening, and seeking compromise.
Encourage open communication among team members to address conflicts early on
Practice active listening to understand all perspectives and concerns
Seek compromise and find common ground to resolve conflicts effectively
Interface is a contract that defines the methods a class must implement, while an abstract class can have both implemented and abstract methods.
Interface can only have abstract methods and cannot have any implementation, while abstract class can have both abstract and implemented methods.
A class can implement multiple interfaces but can only inherit from one abstract class.
Interfaces are used to achieve multiple inheri...
posted on 5 Feb 2025
D/W Rest and GraphQL APIs are two different types of APIs used for communication between software systems.
D/W Rest API is a standard protocol for accessing and manipulating data over the web using HTTP.
GraphQL API is a query language for APIs and a runtime for executing those queries with your existing data.
Rest APIs are more commonly used and follow a stateless client-server architecture.
GraphQL APIs allow clients to ...
REST uses fixed endpoints to define the resources that can be accessed through the API.
RESTful APIs use fixed URLs to access resources
Each endpoint corresponds to a specific resource or action
Endpoints are defined in the API documentation
Example: GET /users retrieves a list of users
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