React Native Mcqs

Most Important React Native Interview Questions and Answers

React Native

React Native allows you to build natively-rendered mobile apps for iOS and Android, Native is also known (RN) popular JavaScript based mobile app Framework.

Q. What is JSX ..??

Answers: JSX is a way for writing xml code along with javascript, known as JavaScript extension. It is used most of the time to create react native user interfaces.

Q. What are the Components in Redux..??

Answer.

  • Action
  • Store
  • View
  • Reducer

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Q.  Write down the best UI Components for the React Native..??

Answer:

  • React Toolbox
  • React Bootsrap
  • Semantic UI
  • Ant design

Q. Write down some of storing persisting data in a React Native App..???

Answer.

  • SQLite
  • Firebase
  • MongoDB
  • Async Storage (“built-in” to React Native)
  •  Realm

Q. Describe the method of run React Native App in

Android..???

Answer.

  • First, enable the USB Debugging option inside the Developer Options.
  • Plug the device via USB to the development machine.
  • Run adb devices command to check that the device is correctly connected to ADB
  • Now install and launch your app by using the below-given command: $ react-native run-android

Q. What is the use of the “webpack” command in React.js?

  • It runs React local development server
  • The “webpack” command is used to transpile all the JavaScript down into one file.
  • It is a module bundler.
  • None

  • It is a module bundler.

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