greytHR Front end Developer Interview Questions and Answers

Q1. Debouncing in react
Ans. 
Debouncing in React is a technique used to limit the number of times a function is called in a specified time frame.
• Debouncing helps in improving performance by reducing unnecessary function calls.

• It is commonly used in scenarios like search bars where we want to wait for user to finish typing before making an API call.

• Example: Using lodash debounce function to delay API call until user stops typing.
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Q2. Throttling in react
Ans. 
Throttling in React helps limit the number of times a function is called within a specified time frame.
• Throttling is used to improve performance by reducing the number of times a function is executed.

• It is commonly used in scenarios like handling scroll events or input changes.

• Example: Using lodash's throttle function to limit the rate of execution of a function.
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Basic in array and function and es6 concepts

It's more deficult it's not easy round

Q1. Speed and distance
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Q2. Age problem and ratioo
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Simple and easy ..basic fundamentals of language

Basic of aptitude .. vocabulary, general knowledge

Normal concepts of apps only please be prepare on math,time,distance and other topics as well

They will check your problem solving ability in coding

Online technical aptitude test

Q1. Related oops and old company projects
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Q1. What’s functional interface and uses. Server side and client side load balancing.
Ans. 
Functional interface is an interface with only one abstract method. Load balancing is used to distribute workload.
• Functional interface is used in lambda expressions in Java.

• Load balancing is used to distribute workload across multiple servers.

• Server side load balancing is done by a load balancer that sits between the client and server.

• Client side load balancing is done by the client application itself.

• Load balancing im...read more
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Q1. Transactional levels and propagation labels cases. Find the sequence of Substring duplicates counts.
Ans. 
The question is unclear and seems unrelated to software development.
• Ask for clarification on the question.

• Transactional levels and propagation labels are related to database transactions.

• Substring duplicates counts can be solved using string manipulation.

• It is unclear how these two topics are related.
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There was an basic question in Aptitude

They told me to tell about social media goods and Bad in Future

Array Questions,Number Coadings,Basics of OOPS

Q1. Tell about yourself
Ans. 
I am a passionate software developer with experience in building web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Heroku

• Strong problem-solving skills and ability ...read more
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Q2. They are logical question, Cake Question
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