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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
231,236 Points
Steven Parker
Steven Parker
231,236 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.