Question 1

Identify the HTML element that enables the disabled objects to appear semi-transparent on the web page.

Accepted Answer

A)  opacity 
B)  border 
C)  float 
D)  background 
A)  opacity 
B)  border 
C)  float 
D)  background A

Question 2

Which of the following Object constructor methods returns true if obj is frozen?

Accepted Answer

A)  Object.freeze(obj) 
B)  Object.isFrozen(obj) 
C)  obj.freeze(Object) 
D)  obj.isFrozen(Object) 
A)  Object.freeze(obj) 
B)  Object.isFrozen(obj) 
C)  obj.freeze(Object) 
D)  obj.isFrozen(Object) C

Question 3

Case-Based Critical Thinking Questions Case 13-5 Steve has created a custom object. He wants to use a template for all the properties and methods associated with the object's class. To add a method to a prototype, Steve should apply the _____ command.

Accepted Answer

A)  objName.prototype.function = method; 
B)  objName.prototype.method = function; 
C)  objClass.prototype.method = function; 
D)  objInstance.prototype.method = function; 
A)  objName.prototype.function = method; 
B)  objName.prototype.method = function; 
C)  objClass.prototype.method = function; 
D)  objInstance.prototype.method = function; B

Question 4

Identify the function of the "Object.keys(obj)" Object constructor method.

Accepted Answer

A)  Defines or modifies the properties for the object, obj 
B)  Return true if obj is frozen 
C)  References the prototype of the object, obj 
D)  Returns an array of the enumerable properties found in obj 
A)  Defines or modifies the properties for the object, obj 
B)  Return true if obj is frozen 
C)  References the prototype of the object, obj 
D)  Returns an array of the enumerable properties found in obj

Question 5

One object class can include objects defined in other classes.

Accepted Answer

A) True 
 B)False

Question 6

To create object classes, you should apply a function known as an object constructor that defines the properties and methods associated with the object type.

Accepted Answer

A) True 
 B)False

Question 7

Explain how an object can be created with the new operator.

Accepted Answer

You can create a native object such as a

Question 8

All prototype chains ultimately find their source in the custom object.

Accepted Answer

A) True 
 B)False

Question 9

Case-Based Critical Thinking Questions Case 13-2 Michelle has defined a custom object by creating an object literal. She wants to access the properties of the custom object. Which of the following can help Michelle to access the properties of the custom object?

Accepted Answer

A)  for…in loop 
B)  Dot operator 
C)  Prototype chain 
D)  Base object 
A)  for…in loop 
B)  Dot operator 
C)  Prototype chain 
D)  Base object

Question 10

Which of the following Object constructor methods defines or modifies the property, prop , for the object, obj ; where descriptor describes the property.

Accepted Answer

A)  obj.defineProperty(object, prop, descriptor) 
B)  prop.defineProperty(object, descriptor)) 
C)  Object.defineProperty(obj, prop, descriptor) 
D)  Object.descriptor(obj, property) 
A)  obj.defineProperty(object, prop, descriptor) 
B)  prop.defineProperty(object, descriptor)) 
C)  Object.defineProperty(obj, prop, descriptor) 
D)  Object.descriptor(obj, property)

Question 11

Identify the Object constructor method that references the prototype of the object, obj .

Accepted Answer

A)  Obj.getPrototypeOf 
B)  Object.getPrototypeOf(obj) 
C)  (obj).getPrototypeOf 
D)  getPrototypeOf(object) 
A)  Obj.getPrototypeOf 
B)  Object.getPrototypeOf(obj) 
C)  (obj).getPrototypeOf 
D)  getPrototypeOf(object)

Question 12

Case-Based Critical Thinking Questions Case 13-5 Steve has created a custom object. He wants to use a template for all the properties and methods associated with the object's class. Which of the following terms corresponds to the template that Steve wants to use?

Accepted Answer

A)  Loop 
B)  Instance 
C)  Prototype 
D)  String 
A)  Loop 
B)  Instance 
C)  Prototype 
D)  String

Question 13

Using prototypes, any object class inherits the properties and methods from another class.

Accepted Answer

A) True 
 B)False

Question 14

Case-Based Critical Thinking Questions Case 13-1 Kenneth wants to create a custom object for a specific programming task. He has defined the custom object by creating it as an object literal. Kenneth can also use a(n) _____ to define the custom object.

Accepted Answer

A)  base object 
B)  for…in loop 
C)  prototype chain 
D)  object constructor 
A)  base object 
B)  for…in loop 
C)  prototype chain 
D)  object constructor

Question 15

The _____ Object constructor method freezes obj so that it cannot be modified by other code.

Accepted Answer

A)  Object.freeze(obj) 
B)  Object.isFrozen(obj) 
C)  obj.freeze(Object) 
D)  obj.isFrozen(Object) 
A)  Object.freeze(obj) 
B)  Object.isFrozen(obj) 
C)  obj.freeze(Object) 
D)  obj.isFrozen(Object)

Question 16

Which of the following methods is applied to define a custom object?

Accepted Answer

A)  sort() method 
B)  Shuffle() method 
C)  create() method 
D)  Console.log() method 
A)  sort() method 
B)  Shuffle() method 
C)  create() method 
D)  Console.log() method

Question 17

One object can be nested within another.

Accepted Answer

A) True 
 B)False

Question 18

A prototype chain should be defined in a top-down order.

Accepted Answer

A) True 
 B)False

Question 19

Identify the method that ensures that the functions defined in one script do not conflict with functions or variables defined in other scripts.

Accepted Answer

A)  Creating object literals 
B)  Using object constructors 
C)  Instantiating objects 
D)  Nesting the functions 
A)  Creating object literals 
B)  Using object constructors 
C)  Instantiating objects 
D)  Nesting the functions

Question 20

The _____ object method returns a text string representation of an object.

Accepted Answer

A)  obj.LocaleString() 
B)  object.toString() 
C)  object.toLocaleString() 
D)  obj.String() 
A)  obj.LocaleString() 
B)  object.toString() 
C)  object.toLocaleString() 
D)  obj.String()

Identify the HTML element that enables the disabled objects to appear semi-transparent on the web page.

Which of the following Object constructor methods returns true if obj is frozen?

Case-Based Critical Thinking Questions Case 13-5 Steve has created a custom object. He wants to use a template for all the properties and methods associated with the object's class. To add a method to a prototype, Steve should apply the _____ command.

Identify the function of the "Object.keys(obj)" Object constructor method.

One object class can include objects defined in other classes.

To create object classes, you should apply a function known as an object constructor that defines the properties and methods associated with the object type.

Explain how an object can be created with the new operator.

All prototype chains ultimately find their source in the custom object.

Case-Based Critical Thinking Questions Case 13-2 Michelle has defined a custom object by creating an object literal. She wants to access the properties of the custom object. Which of the following can help Michelle to access the properties of the custom object?

Which of the following Object constructor methods defines or modifies the property, prop , for the object, obj ; where descriptor describes the property.

Identify the Object constructor method that references the prototype of the object, obj .

Case-Based Critical Thinking Questions Case 13-5 Steve has created a custom object. He wants to use a template for all the properties and methods associated with the object's class. Which of the following terms corresponds to the template that Steve wants to use?

Using prototypes, any object class inherits the properties and methods from another class.

Case-Based Critical Thinking Questions Case 13-1 Kenneth wants to create a custom object for a specific programming task. He has defined the custom object by creating it as an object literal. Kenneth can also use a(n) _____ to define the custom object.

The _____ Object constructor method freezes obj so that it cannot be modified by other code.

Which of the following methods is applied to define a custom object?

One object can be nested within another.

A prototype chain should be defined in a top-down order.

Identify the method that ensures that the functions defined in one script do not conflict with functions or variables defined in other scripts.

The _____ object method returns a text string representation of an object.

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Designing a Page Layout Tutorial

Graphic Design With Css Tutorial

Designing for the Mobile Web Tutorial

Working With Tables and Columns Tutorial

Designing a Web Form Tutorial

Enhancing a Website With Multimedia Tutorial

Getting Started With Javascript Tutorial

Exploring Arrays Loops and Conditional Statements Tutorial

Working With Events and Styles Tutorial

Working With Document Nodes and Style Sheets Tutorial

Programming for Web Forms Tutorial

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Exam 14: Exploring Object-Based Programming

Identify the HTML element that enables the disabled objects to appear semi-transparent on the web page.

Which of the following Object constructor methods returns true if obj is frozen?

Case-Based Critical Thinking Questions Case 13-5 Steve has created a custom object. He wants to use a template for all the properties and methods associated with the object's class. To add a method to a prototype, Steve should apply the _____ command.

Identify the function of the "Object.keys(obj)" Object constructor method.

One object class can include objects defined in other classes.

To create object classes, you should apply a function known as an object constructor that defines the properties and methods associated with the object type.

Explain how an object can be created with the new operator.

All prototype chains ultimately find their source in the custom object.

Case-Based Critical Thinking Questions Case 13-2 Michelle has defined a custom object by creating an object literal. She wants to access the properties of the custom object. Which of the following can help Michelle to access the properties of the custom object?

Which of the following Object constructor methods defines or modifies the property, prop , for the object, obj ; where descriptor describes the property.

Identify the Object constructor method that references the prototype of the object, obj .

Case-Based Critical Thinking Questions Case 13-5 Steve has created a custom object. He wants to use a template for all the properties and methods associated with the object's class. Which of the following terms corresponds to the template that Steve wants to use?

Using prototypes, any object class inherits the properties and methods from another class.

Case-Based Critical Thinking Questions Case 13-1 Kenneth wants to create a custom object for a specific programming task. He has defined the custom object by creating it as an object literal. Kenneth can also use a(n) _____ to define the custom object.

The _____ Object constructor method freezes obj so that it cannot be modified by other code.

Which of the following methods is applied to define a custom object?

One object can be nested within another.

A prototype chain should be defined in a top-down order.

Identify the method that ensures that the functions defined in one script do not conflict with functions or variables defined in other scripts.

The _____ object method returns a text string representation of an object.

Getting Started With Html5

Getting Started With Css Tutorial

Designing a Page Layout Tutorial

Graphic Design With Css Tutorial

Designing for the Mobile Web Tutorial

Working With Tables and Columns Tutorial

Designing a Web Form Tutorial

Enhancing a Website With Multimedia Tutorial

Getting Started With Javascript Tutorial

Exploring Arrays Loops and Conditional Statements Tutorial

Working With Events and Styles Tutorial

Working With Document Nodes and Style Sheets Tutorial

Programming for Web Forms Tutorial

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