When you're learning a foreign language, printed flash cards only help so much - your browser can speak the flash cards in many languages though, using the WebSpeech API.

A closure can be thought of as JavaScript that persists after it has been initialized. Internal state is maintained, such as variable values and event bindings. If there are multiple instances, each has its own memory space so each has its own variables and bindings.

In the beginning days of HTML, every corner was a hard 90-degree angle. Then came rounded corners. Support is growing for more varieties of corners now.

A Bookmarklet is a bookmark for your browser that will not simply take you to a new site or page, but will perform JavaScript within the context of the current page. This opens up the potential for a LOT of powerful tools, tailored to your needs.