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 Numbers and Strings

Posted by Bethany Scotch
Bethany Scotch
11,005 Points

What am I doing wrong?

I'm doing exactly what it says to do....

app.js 
var width = '190px'; parseInt(width);
var numOfDivs = 10;
var totalWidth = width * numOfDivs;
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="app.js"></script>
</body>
</html>

3 Answers

James Bradd
James Bradd
4,597 Points

When you do your "parseInt" function, you aren't assigning it to anything. You need to create a new variable (or reuse the width variable) to hold the result of the function "parseInt".

Venkataraman Ganesan
Venkataraman Ganesan
5,679 Points
Venkataraman Ganesan
Venkataraman Ganesan
5,679 Points

Your approach is correct, your parseInt(width) is not stored anywhere. use parseInt when you are multiplying and assigning the value to totalWidth.

Bethany Scotch
Bethany Scotch
11,005 Points
Bethany Scotch
Bethany Scotch
11,005 Points

Yeah, per usual, I figured it out as soon as I posted something. But thanks!