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React JS Free Certification

Get React JS Certificate from The Digital Adda which you can share in the Certifications section of your LinkedIn profile, on printed resumes, CVs, or other documents.

Exam Details

  • Format: Multiple Choice Question
  • Questions: 10
  • Passing Score: 8/10 or 80%
  • Language: English

Here are the questions and answers

In which directory React Components are saved?

Inside js/components/
/usr/bin/js
Inside vendor/components/
Inside vendor/

Which of the following method is true about referring parent class in React.js ?

self()
inherits()
this()
super()

Which of the following function is true about changing the state in React.js ?

this.State{}
this.setState
this.setChangeState
All of the above

In React.js, how we can pass the data from one component to another in React.js ?

SetState
Render with arguments
Props
PropTypes

Which of the following is true regarding Babel ?

Compiler
Transpilar
Both of the above
None of the above

Which of the following is must for the API in React.js ?

SetinitialComponent
renderComponent
render
All of the above

Which of the following is a way to handle data in React.js ?

State & Props
Services & Components
State & Services
State & Component

Which of the following valid component return type of React ?

2
5
3
1

What is the default port number in which the application run ?

80
443
3000
3669

Which of the following command is used to create react-js-app ?

npx create-react-app appname
npm install create-react-app
npx install create-react-app -g
install – l create-react-app

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