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 Practice Getters and Setters in JavaScript Practicing Getters and Setters Practice Creating and Calling a Setter Method

Posted by Kaleshe Alleyne-Vassel
Kaleshe Alleyne-Vassel
8,466 Points

Having a hard time figuring out what is being asked here

It mentions how to use JavaScript exponents at the end of the task, but I don't understand what I need to use it for or how to adjust the calculations given to be JavaScript friendly...

Circle.js 
class Circle {
    set radius(radius){
      const pi = 3.14
      this._radius = radius;
      this.circumference = 2 * pi * radius;
      this.area = pi * radius ^ 2;
    }

}

const circ = new Circle();

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

The symbol "^" doesn't represent an exponent operation in JavaScript like it does in math. But if you follow the link, it takes you to documentation for the "Math.pow" function that will do the job.

And another way to square something is to just multiply it by itself:

      this.area = pi * radius * radius;
Kaleshe Alleyne-Vassel
Kaleshe Alleyne-Vassel
8,466 Points

Thanks! I was super confused. Thought I was being asked to use the ^ symbol there