I get totally lost of this code challenge...

Question

I finished this corse except this challenge. I would appreciate any advise / hint!

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>

Answer 1 · 2016-12-30T00:35:23Z

December 30, 2016 12:35am

The task is to add the class to the paragraph before the button.

So you want to select the paragraph element which you know is immediately previous to the button itself. Since the provided code already filters out only events on buttons, you can get the previousElementSibling of the event target to get the paragraph, and then use that to set the class name.

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Yuichi Narisawa

Yuichi Narisawa

I get totally lost of this code challenge...

1 Answer

Steven Parker

Steven Parker

The task is to add the class to the paragraph before the button.

Yuichi Narisawa

Yuichi Narisawa