Image () object, thus preloading it into the cache. The onLoad () event handler Like many other objects in JavaScript, the Image () object also comes with some event handlers.

Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

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

Learn more about AJAX, a technique that uses JavaScript and the XMLHTTPRequest object to create faster and better interactive web apps.