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This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.


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


target.detachEvent(eventNameWithOn, callback)
The DOM element to detach the event handler from
The name of the event whose handler is to be detached, prefixed with "on" (as if it were an event handler attribute). For example, you would use "onclick" to detach an event handler for the click event.
Event handler callback function to deregister.


Not part of any specification.

Microsoft has a description on MSDN.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support No support No support 6 thru 10 [1] ? No support
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support No support No support ? ? No support

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

See also


 このページの貢献者: cvrebert, rolfedh
 最終更新者: cvrebert,