Important Points about Javascript - Quiz

Which of the following is a disadvantage of using JavaScript?

  • AClient-side JavaScript does not allow the reading or writing of files.
  • BJavaScript can not be used for Networking applications because there is no such support available.
  • CJavaScript doesn't have any multithreading or multiprocess capabilities.
  • DAll of the above.

Which of the following is the correct syntax to print a page using JavaScript?

  • Awindow.print();
  • Bbrowser.print();
  • Cnavigator.print();
  • Ddocument.print();

Which built-in method returns the character at the specified index?

  • AcharacterAt()
  • BgetCharAt()
  • CcharAt()
  • D None of the above.

All user-defined objects and built-in objects are descendants of an object called Object?

  • Atrue
  • Bfalse

Which of the following function of Number object returns a string value version of the current number?

  • AtoString()
  • BtoFixed()
  • CtoLocaleString()
  • DtoPrecision()

Which of the following function of String object is used to match a regular expression against a string?

  • A concat()
  • Bmatch()
  • Csearch()
  • Dreplace()

Which of the following function of String object returns the calling string value converted to upper case?

  • AtoLocaleUpperCase()
  • BtoUpperCase()
  • CtoString()
  • Dsubstring()

Which of the following function of String object causes a string to be displayed in the specified size as if it were in a tag?

  • Afixed()
  • B fontcolor()
  • Cfontsize()
  • Dbold()

Which of the following function of Array object applies a function simultaneously against two values of the array (from left-to-right) as to reduce it to a single value?

  • Apop()
  • Bpush()
  • Creduce()
  • DreduceRight()

Which of the following function of Array object represents the source code of an object?

  • AtoSource()
  • Bsplice()
  • CtoString()
  • Dunshift()

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