MERN_STACK_11

Which file is commonly used as the entry point of a React application?

• index.html

• main.js

• app.jsx

• index.js

In the context of React, what is the purpose of the onChange event?

• It triggers when a form is submitted.

• It triggers when an input field loses focus.

• It triggers when the value of an input field changes.

• It triggers when a button is clicked.

What does JSX stand for in the context of React?

• JavaScript XML

• JSON Exchange

• Java Syntax Extension

• JSX doesn't stand for anything

What is the purpose of the useState hook in React?

• To manage side effects in functional components.

• To create reusable custom hooks.

• To handle state changes in functional components.

• To manage routing in React applications.

What is React?

• A programming language

• A JavaScript library for building user interfaces

• An operating system

• A database management system