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I applied via Naukri.com and was interviewed in Sep 2020. There were 3 interview rounds.
Virtual DOM is a programming concept where a virtual representation of the actual DOM is created and manipulated for faster rendering.
Virtual DOM is used in ReactJS to improve performance.
It allows for efficient updates to the actual DOM by only updating the necessary changes.
The virtual DOM is a lightweight copy of the actual DOM.
Changes made to the virtual DOM are compared to the previous version to determine what ne...
Refs are a way to access and manipulate DOM elements or React components directly.
Refs are created using React.createRef() or callback refs.
They can be used to access and modify the properties and methods of a component or DOM element.
Refs should be used sparingly and only when necessary, as they can make code harder to understand and maintain.
Example:
Example: const inputRef = React.createRef()
The == operator compares values after type coercion, while === operator compares values and types.
The == operator returns true if the operands are equal after type coercion.
The === operator returns true if the operands are strictly equal without type coercion.
Type coercion is the automatic conversion of a value from one data type to another.
For example, 1 == '1' returns true because the string '1' is coerced to the num...
To run a callback function after state change in React, use useEffect hook.
Import useEffect hook from 'react'.
Use useEffect with dependency array containing the state variable.
Pass the callback function as the second argument to useEffect.
The callback function will run after every state change.
Top trending discussions
posted on 25 Jun 2024
It was in genral apptitude round
I applied via Campus Placement and was interviewed in Jul 2024. There were 3 interview rounds.
General questions asked
I applied via Campus Placement
posted on 11 Feb 2024
There were 2 coding questions asked. If one question is solved you are qualified.
posted on 25 Jan 2023
I applied via Naukri.com and was interviewed in Dec 2022. There were 3 interview rounds.
They given 2 codes to solve in different programming language
Two coding ques. you have to solve in one hour.
Set and list are both collection types in Java. Vector and ArrayList are two implementations of List interface.
Set is an unordered collection of unique elements while List is an ordered collection of elements.
Collections hierarchy in Java includes Collection interface, List interface, Set interface, and Map interface.
Vector is a synchronized implementation of List interface while ArrayList is not synchronized.
Arrays ar...
Case management is the process of managing and coordinating the various aspects of a case or project.
It involves identifying and assessing the needs of the case or project
Developing a plan of action to address those needs
Assigning tasks and responsibilities to team members
Monitoring progress and making adjustments as necessary
Ensuring that all stakeholders are informed and involved in the process
Examples include legal ...
I can join within 2 weeks.
I have completed all my prior commitments and can start immediately.
I just need to give a two-week notice to my current employer.
I am excited about this opportunity and can't wait to start contributing to the team.
posted on 24 Jun 2022
It is included Mcq aptitude and coding
I applied via campus placement at Institute of Technical Education and Research, Bhuvaneshwar and was interviewed before Apr 2023. There was 1 interview round.
Reverse a given string
Create a character array from the input string
Use two pointers to swap characters from start and end of the array
Continue swapping until the pointers meet in the middle
Use SQL query to manipulate data in a column
Use UPDATE statement to modify data in a column
Use SET keyword to specify the new value for the column
Use WHERE clause to filter the rows that need to be updated
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