MentorKart Interview Questions and Answers

Q1. Difference between useMemo and useCallback ?
Ans. 
useMemo is used to memoize a value, while useCallback is used to memoize a function.
• useMemo is used to memoize a computed value and recompute it only when its dependencies change.

• useCallback is used to memoize a callback function and prevent unnecessary re-renders.

• Example: useMemo can be used to memoize the result of a complex computation, while useCallback can be used to memoize an event handler function.
Answered by AI
Add your answer
Q2. How we do error handling in js ?
Ans. 
Error handling in JavaScript involves using try-catch blocks, throwing errors, and using error objects.
• Use try-catch blocks to catch errors and handle them gracefully

• Throw errors using the throw keyword to indicate when something goes wrong

• Use error objects like Error, SyntaxError, TypeError, etc. to provide more information about the error

• Handle asynchronous errors using promises and the .catch() method
Answered by AI
Add your answer
Q3. What is Promises ? Write a Polyfill of Promise.all()
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• Promise.all() takes an array of promises and returns a single promise that resolves when all of the input promises have resolved.

• A polyfill for Promise.all() can be implemented using a combination of Promise and Array.prototype.reduce().
Answered by AI
Add your answer

Frontend assignment make the CRUD application using of reactj.s

Q1. Only self introduction
Add your answer

Q1. General questions about you, with intro etc
Add your answer

Q1. General questions abot your work / exp
Add your answer

On the website I have worked upon and the coding language I know very well

Q1. Html css and javascript questions
Add your answer
Q2. And basic of react
Add your answer

To Design the portfolio to showcase our capabilities

Write a program to find the maximum value in an array of integers.

A bat and ball together cost $1.10. The bat costs $1 more than the ball.

Q1. Excel and Google sheet
Add your answer

Good interaction with Founder

Q1. Tell me about your self
Ans. 
I am a motivated and creative individual with a passion for social media marketing.
• Experienced in creating engaging content for various social media platforms

• Proficient in analyzing social media metrics to optimize marketing strategies

• Strong communication skills and ability to work well in a team
Answered by AI
Add your answer
Q2. Your strength and weakness
Ans. 
My strength is my creativity and ability to think outside the box. My weakness is sometimes being too detail-oriented.
• Strength: Creativity in designing engaging social media content

• Strength: Ability to come up with innovative marketing strategies

• Weakness: Getting too caught up in minor details and losing sight of the bigger picture
Answered by AI
Add your answer

Q1. Trading kniowledge
Add your answer
Q2. Structure of markets
Add your answer