React.js Quiz # 2

Instructions
Quiz: React.js Quiz # 2
Subject: Basic React Js
Total Questions: 280 MCQs
Time: 280 Minutes

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  • Results along with correct answers will be shown at the end of the test.
React.js Quiz # 2
Question 1 of 280
00:00
  • A browser's native events are wrapped into which of the following objects by React for ensuring that all the supported events behave identically in Internet Explorer 8 and higher versions?

  • Which of the following packages is used for providing a React renderer that is used for rendering React components to pure JavaScript objects, without depending on the DOM or a native mobile environment?

  • In relation to React Flux, which of the following arguments is/are passed to the connect function which is used to connect the root component to the store?

  • Which of the following Lifecycle methods of ReactJS Component is/are used to clear up the memory Space?

  • While validating React component properties. a custom validator function is used for validating the tweet property. Which of the following parameters are passed to this function?

    i) properties


    ii) propertyName


    iii) media


    iv) componentName


  • Which of the following options is the correct signature of React createPortaI() method?

  • Which of the following options is the correct Jest function that is used for each test?

  • Which of the following Options is used by the StreamTweet component for incrementing the number of displayed tweets in the global object?

  • While testing Reducers, which of the following commands is used for installing Jest and the Jest CLI globally?

  • Which of the following options is the correct syntax for installing React CSS Transitions Group?

  • Which of the following is the correct syntax for adding a file named index.html via command prompt to your React environment? (Consider that reactApp is the root folder.)

  • Which of the following options is the correct syntax for installing Redux via command prompt?

  • Which of the following is the correct syntax of React function that will enforce that names are written with all uppercase letters?


  • Which of the following is the correct syntax for creating a ReactElement of type h1 having the properties object and a ReactText as its only child?


  • Which of the following options is the correct syntax for creating a new folder named Dispatcher in a project's ”/snapterest/ source/exampleDispatch directory?


  • Which of the following options is the correct signature of the React.Children.map method?

  • Which of the following React methods is used for verifying that the children has a single child (a React element) only and returning it?

  • In relation to React Test Renderer, which of the following arguments is/are passed to testInstance.find ()?

  • Which of the following commands are used for installing React and React DOM? (Consider reactApp as the root folder.)


  • Which of the following types of brackets are used for including collections of elements in JSX?

  • In relation to Flux programming concept. which of the following statements is correct about the data?

  • Which of the following components is used by react for rendering multiple elements without a wrapper?

  • From the given Options, choose the correct guideline(s) that should be followed while planning a React application.

  • Which of the following is NOT a correct advantage of ReactJS?

  • Which of the given render methods is correctly written?


  • Which of the following statements is/are NOT correct about shallowRenderer.render() method in ReactJS?

  • Which of the following statements are correct about Flux?

    i) The application parts are coupled.

    ii) Maintenance of the application is easy.


  • In relation to React Test Renderer, which of the following options is NOT a TestRenderer instance?

  • In relation to ReactJS Flux, which of the following properties is used by JavaScript Objects Actions for informing about the data that should be sent to the store?

  • Which of the following commands is run for creating an ESLint conf‌iguration?

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