The onunload event occurs when the user leaves the page.

onunload事件在用户离开页面时发生。

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For example, the tag has the onload and onunload attributes.

例如，标记拥有onload和onunload属性。

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Keep in mind that the HTML 4.0-style attribute syntax, used for onunload in Listing 1, registers observers for the bubbling phase.

要记住，对于清单1中onunload所用的HTML 4.0风格的语法，观测者被注册到冒泡阶段。

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Use a dijit's destroyRecursive() in the iWidget's onUnload() function to destroy it.

在 iWidget 的onUnload()函数中使用dijit 的destroyRecursive()来销毁它。

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Use a dijit's destroyRecursive() in the iWidget's onUnload() function to destroy it.

在 iWidget 的onUnload()函数中使用dijit 的destroyRecursive()来销毁它。

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