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JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Sibling Traversal

Nikita Savelev
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.a{fill-rule:evenodd;}techdegree
Nikita Savelev
Full Stack JavaScript Techdegree Student 3,741 Points

Having a little trouble

Not exactly if i'm doing this write due to the wording of the question.

app.js
var list = document.getElementsByTagName('ul')[0];

list.addEventListener('click', function(e) {
  if (e.target.tagName == 'BUTTON') {
    list.previousSibling
  }
});
index.html
<!DOCTYPE html>
<html>
    <head>
        <title>JavaScript and the DOM</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <section>
            <h1>Making a Webpage Interactive</h1>
            <p>Things to Learn</p>
            <ul>
                <li><p class = "highlight">Element Selection</p><button>Highlight</button></li>
                <li><p>Events</p><button>Highlight</button></li>
                <li><p>Event Listening</p><button>Highlight</button></li>
                <li><p>DOM Traversal</p><button>Highlight</button></li>
            </ul>
        </section>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Steven Parker
Steven Parker
229,695 Points

Here's a few hints:

  • the paragraph is the sibling of the button, not the list
  • the line above just identified the button as "e.target"
  • you also still need to set the "class" attribute of the paragraph to "highlight"