What does JavaScript rollover actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

What does JavaScript enabled actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more.

Node.js is a lean, fast, cross-platform JavaScript runtime environment that is useful for both servers and desktop applications.

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.

To enable JavaScript, go into the Settings app on your iPhone, click "Safari," then "Advanced," and swipe the JavaScript button to the right so it appears green. Here's a full breakdown with pictures.