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I applied via Approached by Company and was interviewed in Dec 2023. There was 1 interview round.
Virtual DOM is a concept in web development where a lightweight copy of the actual DOM is created and manipulated for efficient rendering.
Virtual DOM is an abstraction of the real DOM.
It is used in frameworks like React to improve performance.
Changes made to the virtual DOM are compared with the actual DOM, and only the necessary updates are applied.
This approach reduces the number of direct manipulations on the actual...
Higher Order Component is a function that takes a component and returns a new component with additional functionality.
Higher Order Components (HOCs) are a pattern in React for reusing component logic.
They are functions that accept a component and return a new component with enhanced capabilities.
HOCs can be used for cross-cutting concerns like authentication, logging, or data fetching.
They enable code reuse, compositio...
Life Cycle Methods in React
React components have several life cycle methods that are called at different stages of a component's life
These methods allow developers to perform actions like initializing state, fetching data, and updating the UI
Some commonly used life cycle methods are componentDidMount, componentDidUpdate, and componentWillUnmount
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posted on 12 Sep 2023
I applied via Naukri.com and was interviewed before Sep 2022. There were 3 interview rounds.
Advanced JS, PHP related questions
posted on 24 Oct 2024
I applied via Naukri.com and was interviewed in Mar 2023. There were 2 interview rounds.
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a subclass to inherit properties and methods from a superclass.
Polymorphism allows objects to take on multiple forms and behave differently based on their context.
Encapsulation hides the implementation details of an object and only exposes necessary information.
Abstraction allows for the creation of abstract class...
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.
Inheritance allows for code reuse and extension of existing classes, reducing code duplication.
Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
SQL query for joining tables
Use JOIN keyword to combine two or more tables based on a related column
Specify the columns to be selected using SELECT keyword
Use ON keyword to specify the condition for joining the tables
Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
Implemented inheritance to create a base class and derived classes with specific functionalities.
Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.
Implemented exception handling to handle errors and prevent program crashes.
Used interfaces to define a set of methods that a ...
Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
Overloading is used to provide different ways to call a method with different parameters
Overriding is used to provide a specific implementation of a method in a subclass
Overloading is resolved at compile-time while overriding is r...
I applied via Recruitment Consulltant and was interviewed before Apr 2023. There were 3 interview rounds.
An actual component is a reusable and modular piece of software that performs a specific function within a larger system.
Components are often designed to be independent and can be easily integrated into different systems.
Examples of components include buttons, input fields, and dropdown menus in a user interface.
Components can have their own logic, styling, and functionality, making them versatile building blocks for s
Designing the architecture for a software system involves planning the structure and components of the system.
Identify the key components of the system and their interactions
Choose appropriate technologies and frameworks for each component
Consider scalability, performance, security, and maintainability
Create a detailed diagram or documentation of the architecture
posted on 27 Aug 2024
I applied via Job Portal
posted on 9 Feb 2022
I applied via Campus Placement
Online Coding Test included some aptitude questions, technical questions followed by 3 coding questions
posted on 19 Nov 2021
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
Check if a number is prime and optimize the code.
Start by checking if the number is less than 2, in which case it is not prime.
Iterate from 2 to the square root of the number and check if any of them divide the number evenly.
If a divisor is found, the number is not prime. Otherwise, it is prime.
To optimise API calls in React, use asynchronous functions and caching techniques.
Use async/await to handle API calls
Implement caching to reduce network requests
Use memoization to avoid unnecessary re-renders
Consider using a state management library like Redux
Use performance profiling tools like React DevTools
posted on 27 Jun 2023
I applied via Company Website and was interviewed in May 2023. There were 3 interview rounds.
30 min test on simple google form
Half hour conding round on basic javascript questions
One hour coding round on little bit intermediate javascript questions
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