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CSE MCQs :: Javascript MCQs

  1. How many properties are there in the interface PerformanceTiming?
  2. A.
    21
    B.
    22
    C.
    23
    D.
    24

  3. What does it indicate when the type attribute of the navigation object is set to 2?
  4. A.
    Navigation by moving back through history
    B.
    Navigation by moving forward through history
    C.
    Both a and b
    D.
    None of the mentioned

  5. The style property belongs to while of the following object?
  6. A.
    Element
    B.
    Window
    C.
    Location
    D.
    None of the mentioned

  7. Which is the method used to add an event listener?
  8. A.
    addEventListener()
    B.
    addListener()
    C.
    addEvent(Listener)
    D.
    addListener(Event)

  9. What should be the value of the type attribute of a variable if the type of file is CSS?
  10. A.
    text/js/css
    B.
    text/js
    C.
    text/css
    D.
    text

  11. Which is the next step after retrieving the content in chunks?
  12. A.
    Paint DOM elements
    B.
    Parse Content
    C.
    Build DOM nodes in render tree
    D.
    None of the mentioned

  13. How can one access the redirectCount property?
  14. A.
    navigation.redirectCount
    B.
    performance.navigation.redirectCount
    C.
    performance.redirectCount
    D.
    redirectCount

  15. Which of the following gives the high level breakdown of memory usage?
  16. A.
    about:memory
    B.
    memory
    C.
    about-memory
    D.
    about::memory

  17. What is the purpose of the startTimeLogging() method?
  18. A.
    Start the timer
    B.
    Capture time logging
    C.
    Capture timing data for referencing
    D.
    All of the mentioned

  19. Which of the following are client-side JavaScript object?
  20. A.
    Database
    B.
    Cursor
    C.
    Client
    D.
    FileUpLoad