BrightCHAMPS Frontend Intern Interview Questions and Answers

DSA, React, JavaScript, Rest API, Redux, VUE js,

Q1. What is virtual DOM?
Ans. 
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates.
• Virtual DOM is a concept used in React to improve performance.

• It is a lightweight copy of the actual DOM.

• It is used to minimize the number of updates needed to be made to the actual DOM.

• When a change is made to the virtual DOM, React compares it with the previous version and only updates the necessary changes to the actual DOM.

• This results i...read more
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Q2. What is Redux?How to implement Redux?
Ans. 
Redux is a predictable state container for JavaScript apps.
• Redux is a state management library for JavaScript applications.

• It helps in managing the state of an application in a predictable way.

• Redux follows a unidirectional data flow pattern.

• To implement Redux, we need to define actions, reducers, and a store.

• Actions are plain JavaScript objects that describe what happened.

• Reducers specify how the application's state c...read more
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