events.Event
An object which allows the addition and removal of listeners for a browser event.
Type
Values of this type are objects.
Methods
events.Event.addListener()- Registers an event listener callback to an event.
events.Event.removeListener()- Deregisters an event listener callback from an event.
events.Event.hasListener()- Tests registration status of a listener.
events.Event.hasListeners()- Tests whether any listeners are registered to the event.
events.Event.addRules()- Registers rules to handle events.
events.Event.getRules()- Returns currently registered rules.
events.Event.removeRules()- Unregisters currently registered rules.
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
Event |
Yes |
14 |
No |
? |
Yes |
14 |
? |
? |
No |
? |
? |
? |
addListener |
Yes |
14 |
No |
? |
Yes |
14 |
? |
? |
No |
? |
? |
? |
addRules |
Yes |
79 |
No |
? |
Yes |
No |
? |
? |
No |
? |
? |
? |
getRules |
Yes |
79 |
No |
? |
Yes |
No |
? |
? |
No |
? |
? |
? |
hasListener |
Yes |
14 |
No |
? |
Yes |
14 |
? |
? |
No |
? |
? |
? |
hasListeners |
Yes |
79 |
No |
? |
Yes |
No |
? |
? |
No |
? |
? |
? |
removeListener |
Yes |
14 |
No |
? |
Yes |
14 |
? |
? |
No |
? |
? |
? |
removeRules |
Yes |
79 |
No |
? |
Yes |
No |
? |
? |
No |
? |
? |
? |
Note: This API is based on Chromium's chrome.events API. This documentation is derived from events.json in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/events/Event