JavaScript Coding Online Test Questions for Developers FAQ PDF Download

Javascript coding online test questions for developers, learn online html MCQs, competency based interview questions with FAQs based online test prep. These frequently asked questions has multiple choice questions (MCQs), html quiz questions and answers: data type of an array is, answer key with options char, int, object, nan for competitive exam preparation. Free FAQ, situational interview questions are to learn javascript coding online test questions for developers: Q&A online with MCQs to practice test questions with answers.

FAQ: 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