JavaScript Coding Online Test Questions for Developers PDF Download

Learn javascript coding online test questions for developers, html FAQs for MCQs based online test prep. These frequently asked questions has multiple choice questions (MCQ), html quiz questions and answers as data type of an array is , answer key with choices as char , int, object and nan for competitive exam preparation. Free frequently asked questions are to learn javascript coding online test questions for developers quiz online with MCQs to practice test questions with answers.

FAQs JavaScript Coding Online Test Questions for Developers PDF Download

MCQ: Data type of an array is

  1. Char
  2. int
  3. object
  4. NaN

C

MCQ: Data type of NaN is a

  1. Null
  2. Undefined
  3. Character
  4. Number

D

MCQ: Variables in JavaScript can be converted to a new variable and another data type, by using

  1. JavaScript function
  2. Comparison
  3. Type conversion
  4. Expression parsing

A

MCQ: Typeof operator of JavaScript always returns a/an

  1. Object
  2. Function
  3. String
  4. Number

C

MCQ: Data type of null is a/an

  1. Undefined
  2. Object
  3. Number
  4. Function

B