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React JS Quiz: Purpose, Lifecycle, and JSX
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React JS Quiz: Purpose, Lifecycle, and JSX

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Questions and Answers

What is the purpose of React JS?

  • To style web pages
  • To manage the user interface of web applications (correct)
  • To design databases
  • To create server-side scripts

    • Which component lifecycle method is called after a component is rendered for the first time?

  • componentWillUpdate()
  • componentWillUnmount()
  • componentDidMount() (correct)
  • componentWillReceiveProps()

    • What does JSX stand for in the context of React JS?

  • JSON XML Syntax
  • JavaScript XML (correct)
  • JavaScript XSLT
  • Java Syntax Extension

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