EZBIZ TECHNOLOGIES React Js Frontend Developer Interview Questions and Answers

Related to javascript and react , like props , hooks , states, data type...

Q1. Type of dom in react explain
Ans. 
React uses a virtual DOM (Document Object Model) to improve performance by minimizing direct manipulation of the actual DOM.
• Virtual DOM is a lightweight copy of the actual DOM.

• React compares the virtual DOM with the actual DOM and only updates the parts that have changed.

• This process helps in reducing the number of DOM manipulations and improves performance.
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Q2. What is react, state , props, api....
Ans. 
React is a JavaScript library for building user interfaces. State is data that can change over time within a component. Props are read-only data passed from a parent component. API stands for Application Programming Interface.
• React is a JavaScript library for building user interfaces

• State is data that can change over time within a component

• Props are read-only data passed from a parent component

• API stands for Applicatio
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Q3. Write a code to find the age using dob
Ans. 
Calculate age using date of birth
• Create a new Date object with the current date

• Calculate the difference between the current date and the date of birth

• Extract the year from the difference to get the age
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