Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript Interactive Web Pages with JavaScript Selecting Elements and Adding Events with JavaScript Adding Events

Posted by Thomas Katalenas
Thomas Katalenas
11,033 Points

what am i doing wrong.

var sayButton = document.getElementById("say"); var greeting = function() { alert("Hello World!"); } sayButton.greeting

app.js 
var sayButton = document.getElementById("say");
var greeting = function() {
  alert("Hello World!");
} sayButton.greeting
index.html 
<!DOCTYPE html>
<html>
<head></head>
<body>
<button id="say">Say "Hello World!"</button>
<script src="app.js"></script>
</body>
</html>

2 Answers

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

Thomas, you are really close. Put this code on line 4, after the closing curly brace:

sayButton.onclick = greeting;
Thomas Katalenas
Thomas Katalenas
11,033 Points
Thomas Katalenas
Thomas Katalenas
11,033 Points

oh yes the event handler lol.