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React JS Quiz

Authored by Gnaneshwar Reddy

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University

Used 6+ times

React JS Quiz
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is React.js?

A) A back-end framework

B) A front-end JavaScript library

C) A database management system

D) A CSS preprocessor

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which company developed React.js?

A) Google

B) Microsoft

C) Facebook

D) Twitter

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is JSX?

A) A JavaScript extension syntax for writing HTML in JavaScript

B) A new version of JavaScript

C) A CSS framework

D) A database language

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is used to create a functional component in React?

A) class MyComponent extends React.Component

B) function MyComponent() { return <div>Hello</div>; }

C) React.createComponent(MyComponent)

D) new React.Component(MyComponent)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is used to update the state in a React class component?

A) updateState()

B) setState()

C) changeState()

D) modifyState()

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a correct way to pass a prop to a component?

A) <MyComponent prop="value" />

B) <MyComponent {prop: "value"} />

C) <MyComponent.prop = "value" />

D) <MyComponent prop["value"] />

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which Hook is used to manage state in a functional component?

A) useEffect

B) useState

C) useReducer

D) useContext

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