Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript Object-Oriented JavaScript Getters and Setters Creating Setter Methods

Posted by koen haentjens
koen haentjens
7,343 Points

I me stuck here for days now ... object oriented JavaScript

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 (major){
     let isMajor = 'true'
     let _major = isMajor
  if (this.credits < 30 ){
  isMajor = 'false';
     _major = 'None';
  }else {
  isMajor = 'true' ;
     _major= isMajor;
  }





}

}

var student = new Student(3.9, 60);

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 (major){
         let isMajor = 'true'
         let _major = isMajor
      if (this.credits < 30 ){
      isMajor = 'false';
         _major = 'None';
      }else {
      isMajor = 'true' ;
         _major= isMajor;
      }





    }
}

var student = new Student(3.9, 60);

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

Here's a few hints:

The "let" operator creates a temporary variable that won't persist in the instance. To create a backing property, you would make an assignment using "this". For example: this._major = major;.

The extra variable "isMajor" isn't part of the instructions and is only being assigned and never used. You don't need it.

Finally, the value "30" identifies Freshmen from Sophomores. To identify Junior or Senior students, you'll need a different value.