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React JS Multiple choice interview questions (MCQ) - Test your React JS knowledge

  1. Everything in React is a _____________
  2. In which directory React Components are saved?
  3. How many elements does a react component return?
  4. What is state in React?
  5. What is Babel?
  6. What does the "webpack" command do?
  7. What port is the default where the webpack-dev-server will run?
  8. What is ReactJS?
  9. What are the two ways that data gets handled in React?
  10. In React what is used to pass data to a component from outside?
Last Updated: Feb 08, 2020,
Posted in Interview Questions,
10 Questions
React JS MCQ

Take React Js Quiz To test your Knowledge.

Below are few React Js MCQ Quiz test that checks your basic knowledge of React JS. This React Js Test contains around 10 questions of multiple choice with 4 options. You have to select the right answer to a question. You can see the correct answer by clicking view answer link.

Also, Read Best React interview questions.

  • Module
  • Component
  • Package
  • Class
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  • Inside js/components/
  • Inside vendor/components/
  • Inside external/components/
  • Inside vendor/
View Answer
  • 2 Elements
  • 1 Element
  • Multiple Elements
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  • A persistant storage.
  • An internal data store (object) of a component.
View Answer
  • A transpiler.
  • An interpreter
  • A Compiler
  • Both Compiler and Transpilar
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  • Transpiles all the Javascript down into one file
  • Runs react local development server.
  • A module bundler
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  • Server side Framework
  • User-interface framework
  • A Library for building interaction interfaces
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  • state & props
  • services & components
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  • setState
  • render with arguments
  • props
  • PropTypes
View Answer
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