React Quiz

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How do you start a new React app using Create React App?

• react-new-app

• npm react

• npx create-react-app my-app

• create app react

What is React primarily used for?

• Building databases

• Creating mobile apps

• Styling websites

• Building user interfaces

What is the extension of a React component file usually?

• .react

• .jsx

• .html

• .jsm

What keyword is used to create a component in React?

• define

• class

• function

• component

Which hook lets you add state in a function component?

• useProps

• useVar

• useEffect

• useState

How do you pass data from a parent to a child component?

• Using state

• Using a hook

• Using props

• Using Redux

Which of these is a valid component name in React?

• header

• Header

• _header

• h1

What symbol is used to write JavaScript inside JSX?

• ()

• <>

• {}

• []

Which hook runs code after the component renders?

• useRender

• useEffect

• useMount

• useJSX