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JavaScript jQuery Basics Working with jQuery Collections Adding/Removing Classes

Rodrigo Novaes
Rodrigo Novaes
9,629 Points
Posted by Rodrigo Novaes
Rodrigo Novaes
9,629 Points

Chain the appropriate jQuery method to add the class of disabled to the submit button...

I'm lost here...

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.addClass('disabled');
$submit.attr('disabled', true);

1 Answer

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

The term "chain" refers to the technique of calling a method on the result of another method.

A generic example might look like this:

$("selector").method1(arg1).method2(arg2);

The "method2" in this example can be said to be "chained".