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 1 of 7

The behaviour of the instances present of a class inside a method is defined by
Answer: (b).Classes
The keyword or the property that you use to refer to an object through which they were invoked is
Answer: (c).this
Consider the following code snippet :

var o = new F();
o.constructor === F

The output would be :
Answer: (b).true
Answer: (d).Functions are values, and there is no hard distinction between methods and fields
Answer: (a).objects inherit prototype properties even in dynamic state
Answer: (c).it is invoked automatically by the JSON.stringify() method
Answer: (a).A is the superclass and B is the subclass
If A is the superclass and B is the subclass, then subclass inherting the superclass can be represented as
Answer: (c).B.prototype=inherit(A);
Answer: (a).var t=new FilteredSet(s, {function(s) {return !(x instanceof Set);});
The method that can be used to create new properties and also to modify the attributes of existing properties is
Answer: (c).Both Object.defineProperty() and Object.defineProperties()
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