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No estándar
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.


Esta es una alternativa propietaria de Microsoft Internet Explorer al estándar para el método EventTarget.addEventListener().


attached = target.attachEvent(eventNameWithOn, callback)
The DOM element to listen for the event on
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 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.
Boolean indicating whether the event handler was successfully attached.


No es parte de ninguna especificación.

Microsoft tiene una descripción en MSDN.

Compatibilidad con navegadores

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Característica Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Soporte básico Sin soporte Sin soporte 6 thru 10 [1] ? Sin soporte
Característica Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Soporte básico Sin soporte Sin soporte ? ? Sin soporte

[1]: attachEvent() ya no está soportado en IE11+. EventTarget.addEventListener() está soportado en IE9+.

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 Colaboradores en esta página: balboag
 Última actualización por: balboag,