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 trialPablo Grippo
25,765 PointsI have a problem with the event handler.
I wrote this:
navigationSelect.addEventListener = ('change', navigateToValue); navigationSelect.addEventListener = ('change', sendAnalytics);
But it says me that I haven't any 'change' in the addEventListener method. What am I doing wrong? Please help me!
//Select select box
var navigationSelect = document.getElementById("nav");
//Navigate to URL when select box is changed
var navigateToValue = function() {
window.location = this.value;
}
//Send analytics data
var sendAnalytics = function() {
//Placeholder
}
navigationSelect.addEventListener = ('change', navigateToValue);
navigationSelect.addEventListener = ('change', sendAnalytics);
<!DOCTYPE html>
<html>
<body>
<select id="nav">
<option value="index.html">Home</option>
<option value="about.html">About</option>
</select>
<h1>Home</h1>
<script src="app.js"></script>
</body>
</html>
<!DOCTYPE html>
<html>
<body>
<select id="nav">
<option value="index.html">Home</option>
<option value="about.html">About</option>
</select>
<h1>About</h1>
<script src="app.js"></script>
</body>
</html>
1 Answer
Hugo Paz
15,622 PointsHI Pablo,
Just change the last 2 lines from:
navigationSelect.addEventListener = ('change', navigateToValue);
navigationSelect.addEventListener = ('change', sendAnalytics);
to
navigationSelect.addEventListener('change', navigateToValue);
navigationSelect.addEventListener('change', sendAnalytics);
And it should work.
Pablo Grippo
25,765 PointsPablo Grippo
25,765 PointsThank you so much Hugo Paz. It works!