JavaScript MCQs with answers Page - 21

Dear candidates you will find MCQ questions of JavaScript here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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Q. What are the different types of errors in JavaScript?

  • (A) Load time errors
  • (B) Run time errors
  • (C) Logical Errors
  • (D) All of the above
💬 Discuss
✅ Correct Answer: (B) Run time errors

Published by Mr. Dubey ⭐ 111.42K Points at 12-Jun-2022 08:23 am in JavaScript

Q. Which of the following built-in method is used to remove the last element from an array and return that element?

  • (A) last()
  • (B) pop()
  • (C) get()
  • (D) None of the above.
💬 Discuss
✅ Correct Answer: (B) pop()

Published by Mr. Dubey ⭐ 111.42K Points at 12-Jun-2022 08:23 am in JavaScript

Q. Which function is used in JavaScript for URL encoding?

  • (A) Server.URLEncode()
  • (B) UREncoding
  • (C) encodeURI()
  • (D) rawurlencode()
💬 Discuss
✅ Correct Answer: (C) encodeURI()

Published by Yashika ⭐ 3.75K Points at 14-Jun-2022 06:16 am in JavaScript

Q. JavaScript is the programming language of the _____.

  • (A) Desktop
  • (B) Mobile
  • (C) Web
  • (D) Server
💬 Discuss
✅ Correct Answer: (C) Web

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:48 pm in JavaScript

Q. Which type of JavaScript language is _____?

  • (A) Object-oriented
  • (B) Object-based
  • (C) Functional programming
  • (D) All of the above
💬 Discuss
✅ Correct Answer: (B) Object-based
Explanation: JavaScript is not a pure OOP's (object oriented programming) based languages such as PHP, java or many other languages, although it is an object-based language. It is not OOP's based language, because it doesn't have three basic properties of object-oriented programming languages, such as polymorphism, encapsulation, and inheritance.

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:49 pm in JavaScript

Q. Which of the following statement(s) is true about the JavaScript?

  • (A) It is a scripting language used to make the website interactive
  • (B) It is an advanced version of Java for Desktop and Mobile application development
  • (C) It is a markup language of Java to develop the webpages
  • (D) All of the above
💬 Discuss
✅ Correct Answer: (D) All of the above

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:49 pm in JavaScript

Q. In which HTML element, we put the JavaScript code?

  • (A) <javascript>...</javascript>
  • (B) <js>...</js>
  • (C) <script>...</script>
  • (D) <css>...</css>
💬 Discuss
✅ Correct Answer: (C) <script>...</script>

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:50 pm in JavaScript

Q. JavaScript code can be written in ____.

  • (A) JavaScript file (.js file)
  • (B) HTML document directly
  • (C) JavaScript file and in HTML document directly
  • (D) In style sheets (.css file)
💬 Discuss
✅ Correct Answer: (C) JavaScript file and in HTML document directly

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:50 pm in JavaScript

Q. Which symbol is used separate JavaScript statements?

  • (A) Comma (,)
  • (B) Colon (:)
  • (C) Hyphen (_)
  • (D) Semicolon (;)
💬 Discuss
✅ Correct Answer: (D) Semicolon (;)

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:50 pm in JavaScript

Q. JavaScript ignores?

  • (A) newlines
  • (B) tabs
  • (C) spaces
  • (D) All of the above
💬 Discuss
✅ Correct Answer: (D) All of the above

Published by Ram Sharma ⭐ 193.88K Points at 18-Jun-2022 09:51 pm in JavaScript

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