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JavaScript jQuery Basics Understanding jQuery Events and DOM Traversal DOM Traversal with jQuery

Why i can complete the challenge?

where is the error?

index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <title>Document</title>
</head>
<body>
  <h2>Student List</h2>

  <ul class="student-list">
    <li>James McAvoy</li>
    <li>Alena Holligan</li>
    <li>Wade Christensen</li>
    <li>Matt Krzyzynski</li>
  </ul>

  <script src="jquery-3.2.1.min.js"></script>
  <script src="app.js"></script>
</body>
</html>
app.js
$('li').eq(2).prev('li').prev('li');

1 Answer

Dear Simone Chinaglia,

You've got it wrong here:

$('li').eq(2).prev('li').prev('li');

instead, you've got to do this:

$('li').eq(2).prev().prev();

The reason is quite simple. the *** prev() *** method can be both a getter and a setter. ( if you are not familiar with these terms, don't worry, they're explained in the jquery basics course ).

Here, the question asks to get the grand-parent of the list element. That means, no string needs to be passed in the prev() method to set anything. Rather you need to get the element. So you pass nothing as arguments.

I'd refer to the jquery documentation for the prev method.

Hope that clears it up, :clap: :smile:

Nafis Fuad

Why not $('.student-list li').eq(2).prev().prev();