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Basic And Variables MCQs

Practice Basic And Variables MCQs for competitive exams.

Basic And Variables MCQs

Practice questions from this topic.

Which was the first browser to support JavaScript ?

  1. A. IE
  2. B. Netscape
  3. C. Mozilla Firefox
  4. D. Google Chrome
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Which attribute is used to specifies that the script is executed when the page has finished parsing (only for external scripts)

  1. A. parse
  2. B. async
  3. C. defer
  4. D. type
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It is good to include JS code inside footer section in order to speed up the Page loading time of Webpage.

  1. A. True
  2. B. False
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JS code included inside head section is loaded before loading page.

  1. A. True
  2. B. False
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We can embed JS code inside HTML directly ?

  1. A. True
  2. B. False
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Local Browser used for validations on the Web Pages uses __________.

  1. A. CSS
  2. B. JS
  3. C. HTML
  4. D. Java
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JavaScript Code is written inside file having extension __________.

  1. A. .javascript
  2. B. .jsc
  3. C. .jvs
  4. D. .js
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JavaScript is designed for following purpose

  1. A. To Style HTML Pages
  2. B. To Execute Query Related to DB on Server
  3. C. To add interactivity to HTML Pages.
  4. D. To Perform Server Side Scripting Opertion
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JavaScript is ______ Side Scripting Language.

  1. A. Server
  2. B. Browser
  3. C. ISP
  4. D. None of These
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Javascript is _________ language.

  1. A. Programming
  2. B. Application
  3. C. None of These
  4. D. Scripting
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The basic purpose of the toLocaleString() is to

  1. A. return a localised object representation
  2. B. return a parsed string
  3. C. return a local time in the string format
  4. D. return a localized string representation of the object
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Identify the process done in the below code snippet o = { x : 1 , y :{ z :[false,null, "" ]}} ; s = JSON . stringify ( o ) ; p = JSON . parse ( s ) ;

  1. A. Object Encapsulation
  2. B. Object Serialization
  3. C. Object Abstraction
  4. D. Object Encoding
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