50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
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---
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title: Use getters and setters to Control Access to an Object
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---
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## Use getters and setters to Control Access to an Object
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<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds -->
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Getters and setters are critical parts of a class/object. They allow you to control their attributes from the outside. They will become more prominent when you get started with the Object-Oriented Programming unit (coming up!). For now, this exercise shows you how to manipulate them with ES6.
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## Hint 1:
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Create the class, Thermostat. You're going to put your constructor, getter, and setter in here.
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## Hint 2:
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Give the constructor a parameter (which you can name anything you want). Set the parameter to an attribute of the same name. Remember, you are initially setting things in Farenheit temperature.
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## Hint 3:
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Create a get method that converts the Farenheit attribute to Celsius. Use the formula given to you.
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## Hint 4:
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Create a set method of the same name as the get method. It should have a parameter that accepts celsius temperature. Convert it to farenheit, and set it to the attribute.
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## Spoiler Alert - Solution Ahead!
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## Solution
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```javascript
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function makeClass() {
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"use strict";
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/* Alter code below this line */
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class Thermostat{
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constructor(farenheit){
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this.farenheit = farenheit;
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}
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get temperature(){
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return 5 / 9 * (this.farenheit - 32);
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}
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set temperature(celsius){
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this.farenheit = celsius * 9.0 / 5 + 32;
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}
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}
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/* Alter code above this line */
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return Thermostat;
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}
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```
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