Conclusion. You don't necessarily have to use getters and setters when creating a JavaScript object, but they can be helpful in many cases. The most common use cases are (1) securing access to data properties and (2) adding extra logic to properties before getting or setting their values.

Should I use setters and getters?

Getters and setters are used to protect your data, particularly when creating classes. For each instance variable, a getter method returns its value while a setter method sets or updates its value. ... You may validate the given value in the setter before actually setting the value.

What is the purpose of getter and setter methods in JavaScript?

In JavaScript, accessor properties are methods that get or set the value of an object. For that, we use these two keywords: get - to define a getter method to get the property value. set - to define a setter method to set the property value.