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 jQuery Basics Working with jQuery Collections Adding/Removing Classes

Posted by Thomas Karageorgiadis
Thomas Karageorgiadis
6,739 Points

I style the button, but it gives me an error.

I get this error: Bummer: Did you make a call to the "addClass" method after calling the "attr" method on the variable named "$submit"?

index.html 
<!DOCTYPE html>
<html lang="en">
<head>
    <title>Document</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <button type="submit" class="submit-btn">Submit If You Can</button>

    <script
    src="jquery-3.2.1.min.js"></script>
    <script src="app.js"></script>
</body>
</html>
app.js 
const $submit = $('.submit-btn');
$submit.attr('disabled', true);

$submit.addClass('disabled');

1 Answer

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

Your code has the same effect, but it wasn't done in the way specified by the challenge.

The instructions say, "Chain the appropriate jQuery method ...". Remember that chaining is when you call a method directly on the result of a previous call, so everything goes in one statement:

$submit.attr('disabled', true).addClass('disabled');
Thomas Karageorgiadis
Thomas Karageorgiadis
6,739 Points

Thank you!