TCS React Native Developer Interview Questions and Answers for Experienced

Q1. What is virtual dom?
Ans. 
Virtual DOM is a lightweight copy of the actual DOM, used for efficient updates in React applications.
• Virtual DOM is a concept in React where a lightweight copy of the actual DOM is created.

• It allows React to efficiently update the UI by comparing the virtual DOM with the actual DOM and only making necessary changes.

• This helps in improving performance by reducing the number of direct manipulations to the actual DOM.

• For...read more
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Q2. Whats call, bind, apply?
Ans. 
call, bind, and apply are methods used to manipulate the context of a function in JavaScript.
• call - calls a function with a given 'this' value and arguments provided individually.

• bind - creates a new function that, when called, has its 'this' keyword set to the provided value.

• apply - calls a function with a given 'this' value and arguments provided as an array.
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It was a technical round happened for 1 hr including coding test. After that in the same call Manager round happened for 20 min. Finally they took screenshot with all the people involved in recruitment process which is a sign of selected.