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

cody gamble
cody gamble
13,312 Points
Posted by cody gamble
cody gamble
13,312 Points

what does the Challenge want me to do? Sibling Traversal:

I don't understand what the challenge wants me to do, how do you add a "highlight" class to the paragraph in the parent list item element?

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

list.addEventListener('click', function(e) {
  if (e.target.tagName == 'BUTTON') {

  }
});
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>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
231,271 Points
Steven Parker
Steven Parker
231,271 Points

They are asking you to literally add the name "highlight" to the sibling element as a class name. You can do this either by assigning the className attribute directly, or by passing that name in a call to classList.add().

The real point of the challenge is in navigating to the correct element.

cody gamble
cody gamble
13,312 Points
cody gamble
cody gamble
13,312 Points

oh, that makes total sense hearing it worded differently, thank you so much