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JavaScript Object-Oriented JavaScript Getters and Setters Creating Setter Methods

Gregory Ford
Gregory Ford
7,109 Points
Posted by Gregory Ford
Gregory Ford
7,109 Points

Not quite sure how to do this...

I'm lost as to what I am supposed to do here. I know the backing property needs an underscore _ but the rest of the assignment has me lost. Can anyone help? Thanks in advance,

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) {
        this._major
    }

}

var student = new Student(3.9, 60);
Jason Larson
Jason Larson
8,359 Points

This was not part of the challenge, nor part of your question, but I just thought I'd throw this out there... In your get level() method, you don't need to do all the else if's (or even the else). If your condition is true, it's going to return a value, so it won't ever check the rest of the conditions, so you can just do:

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

1 Answer

Jason Larson
Jason Larson
8,359 Points

If you're on the second task, the set major(major) method should be empty, so:

set major(major){}

if you're on the last task, you'll need to return the value based on the level (or on credits). You might try something like return this._major = <value>. Obviously, replace <value> with the correct value, and you'll need to wrap it in a conditional.