JavaScript MCQs with answers Page - 57

Here, you will find a collection of MCQ questions on JavaScript. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Which keyword catches all values except those specified?

  • (A) all
  • (B) any
  • (C) default
  • (D) otherwise

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Q. Which of the following is not a property of window object?

  • (A) document
  • (B) menu
  • (C) navigator
  • (D) history

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Q. DOM ____?

  • (A) is dedicated for JavaScript
  • (B) is a template engine
  • (C) describes the structure of the HTML or XML document
  • (D) cannot be manipulated by JavaScript

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Q. Which function does the reverse of split()?

  • (A) append()
  • (B) unite()
  • (C) join()
  • (D) concat()

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Q. Which declaration provides the value of a function?

  • (A) return
  • (B) cancel
  • (C) continue
  • (D) valueOf

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Q. Which property is object oriented?

  • (A) function
  • (B) if statement
  • (C) variable
  • (D) keyword

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Q. Which of the following IS NOT a valid function call?

  • (A) var x = display();
  • (B) display;
  • (C) x = display();
  • (D) display();

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Q. To know the identifier of the user’s OS, we use ______?

  • (A) navigator.userAgent
  • (B) navigator.system
  • (C) navigator.platform
  • (D) navigator.os

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Q. Which of the following functions of “Number” object returns a string of the current number?

  • (A) toString()
  • (B) toFixed()
  • (C) toLocaleString()
  • (D) toPrecision()

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Q. Which of the following functions of “String” object divides a String object into an array of strings by separating the string into substrings?

  • (A) slice()
  • (B) split()
  • (C) replace()
  • (D) search()

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