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 JavaScript Basics (Retired) Working With Numbers Using Math Methods

Posted by Gilbert Francis
Gilbert Francis
873 Points

How to open alert dialogue and display temperature var rounded to nearest integer?

I tried alert () and Math.round() methods .

script.js 
var temperature = 37.5;
'alert'() (37.5);
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

You've gone a bit off track, maybe a few hints will help:

  • function names should never be enclosed in quotes
  • calling a function involves putting one pair of parentheses after the function name
  • any arguments to the function go between the parentheses
  • arguments can include calling other functions
  • you will still need to use Math.round()
  • you should refer to the variable "temperature" by name instead of repeating the value that was assigned to it
Gilbert Francis
Gilbert Francis
873 Points

Thank you Steven.