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Classes And Modules MCQs

Practice Classes And Modules MCQs for competitive exams.

Classes And Modules MCQs

Practice questions from this topic.

What is the code required to delete all “weight” tags?

  1. A. delete weight(pt).all
  2. B. delete pt.element[all]
  3. C. delete pt
  4. D. delete pt..weight
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Which of the following is an example to perform the most common XML manipulations using the XML objects invocation?

  1. A. insertChildBefore()
  2. B. insertChildAfter()
  3. C. appendChildAfter(…)
  4. D. appendChildBefore(…)
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Which of the following is the descendant operator?

  1. A. ..
  2. B. …
  3. C. *
  4. D. @
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Which method to use while working with XML fragments, instead of XML()?

  1. A. XMLInterface()
  2. B. XMLClass()
  3. C. XMLList()
  4. D. XMLArray()
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What is the return type of typeof for standard JavaScript objects?

  1. A. xml
  2. B. object
  3. C. dom
  4. D. html
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When will the finally block be called?

  1. A. When there is no exception
  2. B. When the catch doesnot match
  3. C. When there is exception
  4. D. None of the mentioned
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What will be the reaction when a catch clause has no conditionals ?

  1. A. Takes it to be 0
  2. B. Takes it to be 1
  3. C. Takes it to be true
  4. D. Takes it to be false
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What is the code to be used to trim whitespaces ?

  1. A. let trimmed = (l.trim() for (l in lines))
  2. B. let trimmed = (trim(l))
  3. C. let trimmed = l.trim()
  4. D. let trimmed = for(l in lines))
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Consider the following code snippet data . sort (function( a,b ) ,b - a ) ; What does the above code do?

  1. A. Sort in the alphabetical order
  2. B. Sort in the chronological order
  3. C. Sort in reverse alphabetical order
  4. D. Sort in reverse numerical order
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Consider the following code snippet let succ = function ( x ) x + 1 , yes = function () true , no = function () false ; What convenience does the above code snippet provide?

  1. A. Functional behaviour
  2. B. Modular behaviour
  3. C. No convenience
  4. D. Shorthand expression
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Which method of the iterable object returns an iterator object for the collection?

  1. A. iterator()
  2. B. _iterator_()
  3. C. _iteration_()
  4. D. _return_iterator_()
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Which exception does the Iterators throw from their next() method when there are no more values to iterate, that work on finite collections ?

  1. A. ExitIteration
  2. B. AbortIteration
  3. C. Abort
  4. D. StopIteration
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