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JavaScript jQuery Basics Working with jQuery Collections Adding/Removing Classes

Hello, Need help with this question, keep receiving error message.

Keep receiving error message, any suggestions?

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
var $submit = $('.submit-btn'); $submit.attr('disabled', true );
$submit.attr('disabled',true).addClass("disabled");

2 Answers

Remi Vledder
Remi Vledder
14,144 Points

What is the error you're receiving?

It seems to be working.

Could you try replacing the jQuery include with the following:

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>

you are close you don't need to call again, chaining just means add another jquery method

var $submit = $('.submit-btn');
$submit.attr('disabled', true).addClass("disabled");