React-Day 1

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

• npx install l create-react-app

In React.js which one of the following is used to create a class for Inheritance ?

• class

• extends

• inherits

• delete

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

• 4200

• 3000

• 8100

• 3002

Which of the following valid component return type of React ?

• 2

• 3

• 1

• 5

Which of the following is true regarding Babel ?

• Compiler

• Transpiler

• Both

• None of these

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

• inherits

• Super

• this

• Self

Which of the following is used to render components in web pages ?

• DOM render()

• Render()

• React.DOM

• transfer()

What is the best definition of React.js ?

• Server-Side Framework

• Client-Side Framework

• A Library for building interactive interfaces

• None of these