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

Onkar Hanumante
Onkar Hanumante
2,723 Points

A delegated click event listener has been attached to the selected ul element, which is stored in the variable list. The

thanks!

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

list.addEventListener('click', function(e) {
  if (e.target.tagName == 'BUTTON') {
    let li =e.target;
    li.previousElementSibling.className="highlight"; //referencing paragraph

  }
});
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>

2 Answers

Stephan Olsen
Stephan Olsen
6,650 Points

Just copying and pasting your solution completes the challenge for me. What error are you getting?

Onkar Hanumante
Onkar Hanumante
2,723 Points

this alternative work for me: let li = e.target.parentNode; let para= li.querySelector('p'); para.className ="highlight";

but still, can't 1st solution work?