Welcome to the Classes and Modules MCQs Page

Dive deep into the fascinating world of Classes and Modules with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes and Modules, a crucial aspect of JavaScript. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes and Modules, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within JavaScript.

Check out the MCQs below to embark on an enriching journey through Classes and Modules. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of JavaScript.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Classes and Modules. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Classes and Modules MCQs | Page 7 of 7

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Q61.

What is the code to be used to trim whitespaces ?

let trimmed = (l.trim() for (l in lines));

let trimmed = (trim(l));

let trimmed = l.trim();

let trimmed = for(l in lines));

Discuss

Answer: (a).let trimmed = (l.trim() for (l in lines));

Q62.

What will be the reaction when a catch clause has no conditionals ?

Takes it to be 0

Takes it to be 1

Takes it to be true

Takes it to be false

Discuss

Answer: (c).Takes it to be true

Q63.

When will the finally block be called?

When there is no exception

When the catch doesnot match

When there is exception

None of the mentioned

Discuss

Answer: (d).None of the mentioned

Q64.

What is the return type of typeof for standard JavaScript objects?

xml

object

dom

html

Discuss

Answer: (b).object

Q65.

Which method to use while working with XML fragments, instead of XML()?

XMLInterface()

XMLClass()

XMLList()

XMLArray()

Discuss

Answer: (c).XMLList()

Q66.

Which of the following is the descendant operator?

…

Discuss

Answer: (b).…

Q67.

Which of the following is an example to perform the most common XML manipulations using the XML objects invocation?

insertChildBefore()

insertChildAfter()

appendChildAfter(...)

appendChildBefore(...)

Discuss

Answer: (a).insertChildBefore()

Q68.

What is the code required to delete all "weight" tags?

delete weight(pt).all;

delete pt.element[all];

delete pt;

delete pt..weight;

Discuss

Answer: (d).delete pt..weight;

Page 7 of 7

Welcome to the Classes and Modules MCQs Page

Classes and Modules MCQs | Page 7 of 7

Explore more Topics under JavaScript

Basics of JavaScript

Arrays and Functions

Server Side and Client Side Scripting

Document Object Model and Event Handling

Graphics and Rendering

Performance Measures in JavaScript

Socket Programming with JavaScript

Parsing, Benchmarking and Logging

Invocation and Performance

Caching and Debugging

JavaScript Animation

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