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JavaScript Object-Oriented JavaScript Working with Classes in JavaScript Adding Methods To Our Class

Tibor Ruzinyi
Tibor Ruzinyi
17,968 Points
Posted by Tibor Ruzinyi
Tibor Ruzinyi
17,968 Points

Which of the following is the correct code for a method that will add a course to a student’s schedule?

Can anybody explain me please how and for what reason could we use this method written in this question?

The Q was :Which of the following is the correct code for a method that will add a course to a student’s schedule?

Code :

class Student {
   constructor(gpa, courses) {
       this.gpa = gpa;
       this.courses = courses;
   }

   printGPA() {
       console.log(this.gpa);
   }
}

const ashley = new Student(3.9);

Answer:

addCourse(course){
    this.course.push(course);
  }

2 Answers

William Ma
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.a{fill-rule:evenodd;}techdegree seal-36
William Ma
Front End Web Development Techdegree Graduate 12,958 Points
William Ma
.a{fill-rule:evenodd;}techdegree seal-36
William Ma
Front End Web Development Techdegree Graduate 12,958 Points

yes, confirmed, you're right. addCourse(course){this.courses.push(course);}

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

It's not clear from the quiz code what a "course" is; but assuming it's just a string, an example of using the new method would be to show that the student "ashley" created in the example is taking an Algorithms course:

ashley.addCourse("Algorithms");

However, for this to work correctly, a small bug in the quiz code must be corrected in one of two ways:

// either the student creation needs a 2nd argument:
const ashley = new Student(3.9, []);

// OR the constructor needs to supply a default:
   constructor(gpa, courses=[]) {