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JavaScript Object-Oriented JavaScript Getters and Setters Creating Setter Methods

Posted by Muaaz Matwadia
.a{fill-rule:evenodd;}techdegree seal-36
Muaaz Matwadia
Full Stack JavaScript Techdegree Graduate 19,327 Points

setter()

How do I Complete this ?Also can someone help me understand the use of getters and setters.Thanks

creating_setters.js 
class Student {
    constructor(gpa, credits){
        this.gpa = gpa;
        this.credits = credits;
    }

    stringGPA() {
        return this.gpa.toString();
    }

    get level() {
        if (this.credits > 90 ) {
            return 'Senior';
        } else if (this.credits > 60) {
            return 'Junior';
        } else if (this.credits > 30) {
            return 'Sophomore';
        } else {
            return 'Freshman';
        }
    }
  set major(p){

  }
}

var student = new Student(3.9, 60);

1 Answer

Peter Vann
Peter Vann
36,427 Points

Hi Azzie!

I recently answered this question for another student.

You can see that answer here:

https://teamtreehouse.com/community/completely-confused-2

Setters and getters allow you to store and retrieve variable data with the added benefit of being able to also manipulate that data in the process.

For example, you could do some validation or store the value as all lowercase or perform some math function(s) or do some sort of formatting.

More info:

https://www.w3schools.com/js/js_object_accessors.asp

https://javascript.info/property-accessors

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set

https://www.youtube.com/watch?v=8fo-K7zRv0Y

I hope that helps.

Stay safe and happy coding!