I didn't understand what exactly to do in this challenge!

Question

Can someone help what exactly to do here?

app.js

var 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>

Answer 1 · 2020-08-17T14:28:20Z

August 17, 2020 2:28pm

Hey Sumana Vittal,

You need to use previousElmentSibling property after if block:

list.addEventListener('click', function(e) {
  if (e.target.tagName == 'BUTTON') {
    e.target.previousElementSibling.className = 'highlight';
  }
});

Hope this helps!

Answer 2 · 2020-08-26T22:53:13Z

August 26, 2020 10:53pm

Thank you!

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Sumana Vittal

Sumana Vittal

I didn't understand what exactly to do in this challenge!

2 Answers

Rabin Gharti Magar

Rabin Gharti Magar

Sumana Vittal

Sumana Vittal