That basically means that you can't use JavaScript for key features of your website; key features like JavaScript enabled drop-down menus for navigation.

在网站上不能利用JS来设计网站的主要内容，比如说，不要利用JS设计下拉菜单，为用户导航。

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Your JSON document doesn't contain any markup, just the URLs and metadata for the images your JavaScript code turns into a slide show.

我们的JSON文档不包含任何标记，只包含要转换为幻灯片的图像的URL和元数据。

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Another important feature of JavaScript frameworks is its improved support for event handling.

框架的另一重要特性是其改进的事件处理支持。

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At IBC in Amsterdam, Opera is also unveiling the newest version of the Opera Devices Software Development Kit (SDK) with native JavaScript execution for MIPS CPUs, WebGL (beta) support and much more.

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Ajax (geek shorthand for asynchronous JavaScript and XML, which itself is short for extensible markup language) preloads Web content so users can change text, crop and move pictures and add multicolored borders without waiting for a page reload.

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The principle is the same for JavaScript effects or even server side PHP logic.

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