Sharpener Interview Questions, Process, and Tips

Array, string, and some map questions

Q1. About js , and about react js
Add your answer
Q2. What is callback?
Ans. 
A callback is a function passed as an argument to another function, which is then executed after the first function has completed.
• Callback functions are commonly used in asynchronous programming to handle responses or events.

• Callbacks can be synchronous or asynchronous.

• Example: setTimeout(callback, 1000) will execute the callback function after 1 second.
Answered by AI
Add your answer
Q3. What is useEffect
Ans. 
useEffect is a hook in React that allows functional components to perform side effects.
• Used to perform side effects in functional components

• Executes after render

• Can be used to fetch data, subscribe to events, update the DOM, etc.
Answered by AI
Add your answer
Q4. When we use useEffect
Ans. 
useEffect is used in React to perform side effects in function components.
• useEffect is used to perform side effects in function components, such as data fetching, subscriptions, or manually changing the DOM.

• It runs after every render by default, but you can specify dependencies to control when it runs.

• Example: useEffect(() => { console.log('Component mounted'); }, []);
Answered by AI
Add your answer

Q1. They will take more mock interviews to upskill the students which helps me to broaden my skills
Add your answer

Return a reverse string from first to last

Q1. What are microservices in javascript
Ans. 
Microservices in JavaScript are small, independent, and loosely coupled services that work together to form a larger application.
• Microservices are designed to be modular and scalable

• Each microservice performs a specific task and communicates with other microservices through APIs

• They can be written in different programming languages and can run on different servers

• Examples of microservices in JavaScript include Netflix,
Answered by AI
Add your answer

Q1. Hobbies, Introduction, About.
Add your answer

Q1. Asked about pitch. Know about me, asked some different questions.
Add your answer