Match between columns Premises: Returns an array of the enumerable properties found in obj Returns the value of object as a text string, number, Boolean value, undefined, or null Returns the value of object as a text string, number, Boolean value, undefined, or null Returns true if the prop property is enumerable Returns true if object exists in object obj prototype chain Returns true if obj is frozen Returns true if the prop property is enumerable Returns the value of object as a text string, number, Boolean value, undefined, or null Returns true if obj is frozen Returns true if object exists in object obj prototype chain Returns an array of the enumerable properties found in obj Returns true if object has the specified property, prop Defines or modifies the properties, prop , for the object, obj References the constructor function that creates object References the prototype of the object, obj Creates an object using the prototype, proto ; where properties is an optional list of properties added to the object Returns true if object exists in object obj prototype chain References the prototype of the object, obj Returns true if object has the specified property, prop References the constructor function that creates object Returns true if the prop property is enumerable References the constructor function that creates object Creates an object using the prototype, proto ; where properties is an optional list of properties added to the object Returns true if object has the specified property, prop Defines or modifies the properties, prop , for the object, obj

The Answer of Object.defineProperties(obj, props) and Object.getPrototypeOf(obj) and object.constructor and is...

Exam 14: Exploring Object-Based Programming

Refer to the following code snippet and identify the use of the substring() and toLowerCase() methods. function pokerCard(cardSuit, cardRank) { … this.cardImage() = function() { var suitAbbr = this.suit.substring(0, 1).toLowerCase(); return suitAbbr + this.rankValue + ".p ng"; } }

(Multiple Choice)

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Question 61

In an object literal, each _____ pair contains a property and property value associated with the object.

(Multiple Choice)

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(42)

Question 62

Match the following object properties/methods to their respective descriptions.

Returns the value of object as a text string, number, Boolean value, undefined, or null

Object.defineProperties(obj, props)

Defines or modifies the properties, prop , for the object, obj

Object.keys(obj)

Returns true if object has the specified property, prop

object.valueOf()

Correct Answer:

Verified

Returns the value of object as a text string, number, Boolean value, undefined, or null

Defines or modifies the properties, prop , for the object, obj

Returns true if object has the specified property, prop

Returns an array of the enumerable properties found in obj

References the prototype of the object, obj

Returns true if the prop property is enumerable

Returns true if object exists in object obj prototype chain

References the constructor function that creates object

Returns true if obj is frozen

Creates an object using the prototype, proto ; where properties is an optional list of properties added to the object

(Matching)

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(37)

Question 63

Case-Based Critical Thinking Questions Case 13-4 Edward wants to use object-based programming to create objects that belong to a specific type or class with shared properties and methods. A specific object that belongs to a specific object class, created by Edward, can be termed as a(n) _____.

(Multiple Choice)

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(34)

Question 64

Match the following object properties/methods to their respective descriptions.

Creates an object using the prototype, proto ; where properties is an optional list of properties added to the object

object.valueOf()

Returns the value of object as a text string, number, Boolean value, undefined, or null

Object.keys(obj)

Returns an array of the enumerable properties found in obj

object.hasOwnProperty(prop)

Correct Answer:

Verified

Creates an object using the prototype, proto ; where properties is an optional list of properties added to the object

Returns the value of object as a text string, number, Boolean value, undefined, or null

Returns an array of the enumerable properties found in obj

Returns true if obj is frozen

References the prototype of the object, obj

References the constructor function that creates object

Returns true if the prop property is enumerable

Returns true if object exists in object obj prototype chain

Defines or modifies the properties, prop , for the object, obj

Returns true if object has the specified property, prop

(Multiple Choice)

4.9/5

(42)

Question 75

Match the following object properties/methods to their respective descriptions.

Returns an array of the enumerable properties found in obj

Object.defineProperties(obj, props)

Returns the value of object as a text string, number, Boolean value, undefined, or null

Object.getPrototypeOf(obj)

Returns the value of object as a text string, number, Boolean value, undefined, or null

object.constructor

Correct Answer:

Verified

Returns an array of the enumerable properties found in obj

Returns the value of object as a text string, number, Boolean value, undefined, or null

Returns true if the prop property is enumerable

Returns true if object exists in object obj prototype chain

Returns true if obj is frozen

Returns true if the prop property is enumerable

Returns the value of object as a text string, number, Boolean value, undefined, or null

Returns true if obj is frozen

Returns true if object exists in object obj prototype chain

(Matching)

5.0/5

(41)

Question 76

Which of the following notations is used to write object properties?

(Multiple Choice)

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Question 77

Refer to the following code snippet and identify the use of the substring() and toLowerCase() methods. function pokerCard(cardSuit, cardRank) { … this.cardImage() = function() { var suitAbbr = this.suit.substring(0, 1).toLowerCase(); return suitAbbr + this.rankValue + ".p ng"; } }

In an object literal, each _____ pair contains a property and property value associated with the object.

Case-Based Critical Thinking Questions Case 13-4 Edward wants to use object-based programming to create objects that belong to a specific type or class with shared properties and methods. A specific object that belongs to a specific object class, created by Edward, can be termed as a(n) _____.

Identify the general syntax of the object literal.

Which of the following objects is also known as user-defined objects?

Identify the advantage of using JavaScript's built-in Array object methods to loop through the contents of an array.

Identify the expression used to reference a prototype.

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. Michelle can also write the properties of the custom object by using the _____.

_____ objects are extended by adding new methods to those object's prototypes.

Instantiating an object from a constructor function results in efficient use of memory and resources.

A prototype chain ranges from the base object class in the chain, known as the superclass down to the lower classes or subclasses .

Identify the use of var objInstance = new objClass(parameters); command.

You should use the _____ method to test whether each item in an array matches a specified condition.

Which of the following notations is used to write object properties?

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