React Basic

Which of the following is used in React.js to increase performance?

• Virtual DOM

• Original DOM

• Both

• None

What is ReactJS?

• Framework

• Library

• Language

• None

Identify the one which is used to pass data to components from outside

• setState

• PropTypes

• Render with Arguments

• Props

Identify the command used to create a react app.

• npm install -g create-react-app

• npx create-react-app appName

• Both

• None

JSX stands for _______?

• JavaScript XML

• JSON XML

• JavaScript

• JavaScript and AngularJS

In which method we call our initial API?

• useState

• useLayoutEffect

• Render()

• useEffect

React component can return only ___ element/s?

• 1

• 2

• 3

• 4

Which tag doesn't have any effects?

• div

• span

• React.Fragment

• h1

How do you select all p elements inside div tag?

• div + p

• div p

• div ~ p

• div > p