
JavaScript is a language that is used to update pages dynamically in the browser so that pages can be changes without accessing the server. This can make the page content more responsive to the user.
JavaScript has become increasingly important as people using the internet expect pages to behave more like software than the stuffy intellectual information sharing it was designed for. Many web pages now won't work at all if you have javaScript disabled.
Some of the projects that make use of JavaScript are:
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