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JavaScript Object-Oriented JavaScript Getters and Setters Creating Getter Methods

Why if I try to use method instead of getter Node returns the whole thing back?

I'm a bit confused about the result of my little experiment. I tried to use method instead of getter because honestly, I don't see the difference. But apparently here's the difference. Can someone explain to me why it returns the whole method instead of the result? What's wrong with using a method for this particular task? There's this line when you should use a getter instead of method?

here's the result of this script in console: treehouse:~/workspace$ node students.js
31
Level getter: Sophomore
Level method: levelMethod(){
var level;
if ( this.credits > 90 ) {
level = 'Senior';
} else if ( this.credits > 60 ) {
level = 'Junior';
} else if ( this.credits > 30) {
level = 'Sophomore';
} else { level = 'Freshman'; }
return level;
}

creating_getters.js
class Student {
    constructor(gpa, credits){
        this.gpa = gpa;
        this.credits = credits;
    }
get level(){
    var level;
    if ( this.credits > 90 ) {
        level = 'Senior';
       } else if ( this.credits > 60 ) {
                  level = 'Junior';
       } else if ( this.credits > 30) {
         level = 'Sophomore';
       } else { level = 'Freshman'; }
return level;         
}

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

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

    }
}

const student = new Student(3.9, 31);

console.log( student.credits);
console.log('Level getter: ' + student.level);
console.log('Level method: ' + student.levelMethod);

1 Answer

Try:

console.log('Level method: ' + student.levelMethod());

() invokes the method. Without () the definition is returned.

hey Kris, thanks for the response. Does that mean that get method call do not require parenthesis?