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为这个EventTarget附加事件.

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非标准
该特性是非标准的,请尽量不要在生产环境中使用它!

Summary

This is a proprietary Microsoft Internet Explorer alternative to the standard EventTarget.addEventListener() method.

Syntax

attached = target.attachEvent(eventNameWithOn, callback)
target
The DOM element to listen for the event on
eventNameWithOn
The name of the event to listen for, prefixed with "on", as if it were an event handler attribute. For example, you would use "onclick" to listen for the click event.
callback
Callback function to call when the event is triggered on this target. The function will be called with no arguments, and with the this reference set to the window object.
attached
Boolean indicating whether the event handler was successfully attached.

Specification

Not part of any specification.

Microsoft has a description on MSDN.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 未实现 未实现 6 thru 10 [1] ? 未实现
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 未实现 未实现 ? ? 未实现

[1]: attachEvent() is no longer supported in IE11+. EventTarget.addEventListener() is supported in IE9+.

See also

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