Getters & Setters

Question 1

You can create getters and setters in three different ways:

Answer 1

1. with the default method syntax (getter and setter methods),
2. with the get and set keywords,
3. with the Object.defineProperty() method.

Question 2

Write a getter using the default method syntax (getter and setter methods) for

var myCar = { 
  color: "blue",
}

Answer 2

getColor: function (){
return this.color;
}

Question 3

Write a getter with the get and set keywords,

var myCar = { 
  color: "blue",
}

Answer 3

get: color(){
return this.color
}

Question 4

Write a getter with the Object.defineProperty() method.

var myCar = { 
  color: "blue",
}

Answer 4

Object.defineProperty(myCar, "color", {
	get: function() { 
         return this.defColor; 
    },
});

Question 5

What takes in a argument?

Setter or getter

Answer 5

setter

Question 6

what uses the return keyword?

Answer 6

getter

Question 7

The most important thing to remember about the ___ keyword is that it defines an accessor property, rather than a method.

Answer 7

get

Question 8

The biggest advantage of using the get and set keywords is that you can keep data properties ______

Answer 8

private.

Question 9

You can use the_____________ method of the global Object to add getters and setters to an already existing object.

Answer 9

defineProperty()

Question 10

The static method _________ defines a new property directly on an object, or modifies an existing property on an object, and returns the object.

Answer 10

Object.defineProperty()

Question 11

Object.defineProperty(________)

hint: 3 of them

Answer 11

obj, prop, descriptor

Question 12

the 6 accessor descriptors

Answer 12

get
set
Value
writable
configurable
enumerable

Question 13

Properties created via Object.defineProperties, Object.defineProperty and Reflect.defineProperty automatically configure to __________

Answer 13

writable: false

Read only

Question 14

2 ways to Protect data with getters and setters

Answer 14

1. Bock scoping

2. Function scoping

Question 15

Write a setter using the default method syntax (getter and setter methods) for

var myCar = { 
  color: "blue",
}

Answer 15

setColor: function(newColor){
this.color =newColor;
}

Question 16

Write a setter with the get and set keywords,

var myCar = { 
  color: "blue",
}

Answer 16

set color (newColor){
this.defColor = newColor;
}

Question 17

Write a setter with the Object.defineProperty() method.

var myCar = { 
  color: "blue",
}

Answer 17

Object.defineProperty(myCar, "color", {
	set: function(newColor) {
		this.defColor = newColor;
	},
});