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 DOM Scripting By Example Adding and Removing Names Using the submit Event

Posted by steve thomas
steve thomas
9,753 Points

Challenge Task 2 of 2 Using the event object, ensure that the brower will not submit

Challenge Task 2 of 2

Alter the callback function to use the event object. Using the event object, ensure that the browser's default form submit behavior does not occur when the form is submitted.

app.js 
const form = document.querySelector('form');
const submitButton = form.querySelector('[type=Submit]');
form.addEventListener('submit', () => {  
   e.preventDefault('click');
});
index.html 
<!DOCTYPE html>
<html>
<head>
  <title>Submit Event</title>
</head>
<body>
<form>
  <label>Name:</label>
  <input type="text" name="name">
  <input type="Submit" name="submit" value="Submit">
</form>
  <script src="app.js"></script>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

The event object is not being passed to the handler.

In the handler you reference the event object as "e", but no parameter is being passed to the handler.

Replace the placeholder parentheses in the function definition with the argument e.