Avegen Health Interview Questions, Process, and Tips

Q1. 1. What is Virtual DOM in react?
Ans. 
Virtual DOM is a lightweight copy of the actual DOM, used by React to efficiently update and render components.
• Virtual DOM is a concept in React that improves performance by minimizing direct manipulation of the actual DOM.

• It is a lightweight copy of the actual DOM tree, stored in memory.

• React uses the Virtual DOM to determine the most efficient way to update the actual DOM.

• When changes are made to the Virtual DOM, Rea...read more
Answered by AI
View 1 more answer
Q2. Explain the lifecycle of react component
Ans. 
React component lifecycle includes mounting, updating, and unmounting phases.
• Mounting phase: constructor() -> getDerivedStateFromProps() -> render() -> componentDidMount()

• Updating phase: getDerivedStateFromProps() -> shouldComponentUpdate() -> render() -> getSnapshotBeforeUpdate() -> componentDidUpdate()

• Unmounting phase: componentWillUnmount()

• Examples: constructor() initializes state, componentDidMount() fetches data, ...read more
Answered by AI
Add your answer
Q3. There are three main stages in React Lifecycle 1. Mounting 2. Updating 3. Unmounting
Ans. 
React has three main stages in its lifecycle: Mounting, Updating, and Unmounting.
• Mounting: when a component is being created and inserted into the DOM

• Updating: when a component is being re-rendered due to changes in props or state

• Unmounting: when a component is being removed from the DOM
Answered by AI
Add your answer
Q4. What is event loop and how it works?
Ans. 
Event loop is a mechanism that allows JavaScript to perform non-blocking I/O operations.
• Event loop is responsible for handling asynchronous callbacks in JavaScript.

• It continuously checks the call stack and the task queue for any pending tasks.

• If the call stack is empty, it picks up the first task from the task queue and pushes it onto the call stack.

• It then executes the task and repeats the process until there are no m...read more
Answered by AI
Add your answer
Q5. The event loop is a mechanism in javascript that handles asynchronous operations, such as timers, network requests, etc. When an asynchronous operation is created it is added in queue, along with a callbac...read more
Add your answer
Q6. In context of redux, is state mutable?
Ans. 
Yes, state is mutable in Redux.
• State in Redux is mutable, but it should not be directly mutated.

• Changes to state should be made through pure functions called reducers.

• The immutability of state is important for predictable and efficient updates.

• Examples of state mutation include using the 'push' method on an array or directly modifying an object property.
Answered by AI
Add your answer
Q7. Redux is generally considered as immutable, any new action dispatched creates a new state
Add your answer

Have to make changes to a react native codebase and make it functional. Fairly easy for someone with hands-on experience.

Q1. JavaScript, React, Node.js related questions. Intermediate to advanced level
Add your answer

Q1. Typical questions like why you want to join, what you like etc.
Add your answer

Q1. Round with CEO and CTO Random scenario, open ended discussions
Add your answer
Q2. DSA basic question, Explain Architecture of something
Add your answer

Q1. Explain your jounrey as a designer in brief
Ans. 
I started as a graphic designer and evolved into a design lead with experience in UX/UI and product design.
• Began as a graphic designer creating print materials

• Transitioned to web design and learned HTML/CSS

• Expanded into UX/UI design and product design

• Led design teams and collaborated with cross-functional teams

• Continuously learning and staying up-to-date with design trends and technologies
Answered by AI
Add your answer
Q2. Showcase some case studies
Add your answer

An assignment to test your research and ui design skills.

Basic Aptitude questions

I had 2 questions, and both were of medium level.

Q1. This round contained technical as well as managerial. Technical involves basic technical questions which include DSA, Networking, and finally questions on experiences/projects. The managerial round include...read more
Add your answer

Q1. Basic HR questions.
Add your answer