WindowEventHandlers

WindowEventHandlers mixin 描述了事件处理程序常见的一些公共接口 ，例如Window和 HTMLBodyElement 和 HTMLFrameSetElement等这些接口都实现了下列特定的事件处理程序。

WindowEventHandlers不是一个接口，没有这种类型的对象可以创建。

The events properties, of the form onXYZ, are defined on the WindowEventHandlers, and implemented by Window, and WorkerGlobalScope for Web Workers.

WindowEventHandlers.onafterprint

Is an EventHandler representing the code to be called when the afterprint event is raised.

WindowEventHandlers.onbeforeprint

Is an EventHandler representing the code to be called when the beforeprint event is raised.

WindowEventHandlers.onbeforeunload

Is an EventHandler representing the code to be called when the beforeunload event is raised.

WindowEventHandlers.onhashchange

Is an EventHandler representing the code to be called when the hashchange event is raised.

WindowEventHandlers.onlanguagechange

Is an EventHandler representing the code to be called when the languagechange event is raised.

WindowEventHandlers.onmessage

Is an EventHandler representing the code to be called when the message event is raised.

WindowEventHandlers.onoffline

Is an EventHandler representing the code to be called when the offline event is raised.

WindowEventHandlers.ononline

Is an EventHandler representing the code to be called when the online event is raised.

WindowEventHandlers.onpagehide

Is an EventHandler representing the code to be called when the pagehide event is raised.

WindowEventHandlers.onpageshow

Is an EventHandler representing the code to be called when the pageshow event is raised.

WindowEventHandlers.onpopstate

Is an EventHandler representing the code to be called when the popstate event is raised.

WindowEventHandlers.onstorage

Is an EventHandler representing the code to be called when the storage event is raised.

WindowEventHandlers.onunhandledrejection

An event handler for unhandled Promise rejection events.

WindowEventHandlers.onunload

Is an EventHandler representing the code to be called when the unload event is raised.

This interface defines no method.

• Window and WorkerGlobalScope