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!

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 JavaScript Basics (Retired) Working With Numbers Using Math Methods

Ileana Dell'Unti
Ileana Dell'Unti
2,282 Points

I don't understand the challenge

is it because of my english?

var temperature = 37.5
alert (Math.round (temperature));
var temperature = 37.4
alert (Math.round (temperature));
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
<script src="script.js"></script>

2 Answers

Merritt Lawrenson
Merritt Lawrenson
13,477 Points

You're close. The first part is right, but for part two you want to round down. There are three different rounding methods: round() rounds to the nearest whole number like in math class, floor() rounds down, and ceil() rounds up.

Since you want it down, you need to use floor. For example, 99.9 rounds to 100, but if you used floor, it rounds down to 99, no matter how close to 100 you are.

Joshua Edwards
Joshua Edwards
52,175 Points

For part two you want to use the floor method of Math not the round method.