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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.

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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 2 of 7

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Q11.
The four kinds of class members are

a.

Instance methods, Instance fields, Static method, Dynamic method

b.

Instance fields, Instance methods, Class fields, Class methods

c.

Instance fields, Non-instance fields, Dynamic methods, Global methods

d.

Global methods, Local methods, Dynamic methods, Static methods

Discuss
Answer: (b).Instance fields, Instance methods, Class fields, Class methods
Q12.
The properties of the objects act like different kinds of class members. They are

a.

Public object, Private object, Protected object

b.

Constructor object, Function object, Destructor object

c.

Constructor object, Prototype object, Instance object

d.

Instance method, Static object, Dynamic object

Discuss
Answer: (c).Constructor object, Prototype object, Instance object
Q13.
The object whose properties are inherited by all instances of the class, and properties whose values are functions behaving like instance methods of the class, is

a.

Instance object

b.

Constructor object

c.

Destructor object

d.

Prototype object

Discuss
Answer: (d).Prototype object
Q14.
Which are usually variables that are used internally in object methods and also are globally visible variables?

a.

Object properties

b.

Variable properties

c.

Method properties

d.

Internal properties

Discuss
Answer: (b).Variable properties
Q15.
The class that represents the regular expressions is

a.

RegExpObj

b.

RegExpClass

c.

RegExp

d.

StringExp

Discuss
Answer: (c).RegExp
Q16.
Which is the correct code that returns a complex number that is the complex conjugate of this one?

a.

Complex.prototype.conj = function() { return new Complex(this.r, -this.i); };

b.

Complex.prototype.conj = function() { return Complex(this.r, -this.i); };

c.

Complex.prototype.conj = function() { return (this.r, -this.i); };

d.

Complex.prototype.conj = function() { new Complex(this.r, -this.i); };

Discuss
Answer: (a).Complex.prototype.conj = function() { return new Complex(this.r, -this.i); };
Q17.
How can we make methods available on all objects?

a.

Object.add(methods)

b.

Object.methods(add)

c.

Object.add.methods(...)

d.

Object.prototype

Discuss
Answer: (d).Object.prototype
Q18.
What is the procedure to add methods to HTMLElement so that they will be inherited by the objects that represent the HTML tags in the current document?

a.

HTMLElement.prototype(…)

b.

HTMLElement.prototype

c.

HTML.addmethods()

d.

HTML.elements(add)

Discuss
Answer: (b).HTMLElement.prototype
Q19.
You can refresh the webpage in JavaScript by using

a.

window.reload

b.

location.reload

c.

window.refresh

d.

page.refresh

Discuss
Answer: (b).location.reload
Q20.
The functions provide() and require() of Dojo toolkit and Google's Closure library are used for

a.

declaring and loading modules

b.

loading and declaring modules

c.

declaring modules

d.

none of the mentioned

Discuss
Answer: (a).declaring and loading modules
Page 2 of 7

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