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JavaScript JavaScript Basics (Retired) Introducing JavaScript Your First JavaScript Program

David MacDonald
David MacDonald
919 Points
Posted by David MacDonald
David MacDonald
919 Points

in script.js nothing is appearing when i use preview. How can i get the alert and header to appear?

I have the index.html file. Preview opens to port80 instead of web. Nothing appears after i enter the statement and command.

3 Answers

Jeff Wilton
Jeff Wilton
16,633 Points
Jeff Wilton
Jeff Wilton
16,633 Points

There are three things to note, so lets take a look one at a time.

First, your index.html file should load the scripts.js file:

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <link rel="stylesheet" href="css/main.css">
  <title>JavaScript Basics</title>
 </head>
<body>
  <div class="container">
  <script src="scripts.js"></script>
  </div>
</body>
</html>

Second, your scripts.js file should have an alert statement and a document.write statement:

scripts.js

alert("Hello from Treehouse!");
document.write("<h1>Welcome to Javascript Basics</h1>");

Third, when you open the preview window, it should go to port 80 with a URL something like this: http://port-80-i0up09r7h4.treehouse-app.com/

(this URL is unique to me, so use whatever URL opens when you click preview in your workspaces.

If you do all of the above and you still don't see the alert in the preview window, then try doing a hard refresh (Ctrl+Shift+R in Firefox or Chrome) or clear your browser cache.

Hope this helps!

Tre Dudman
Tre Dudman
10,575 Points
Tre Dudman
Tre Dudman
10,575 Points

Ctrl+Shift+R did the trick, thanks heaps!