From 9ace67d06f2369e3c770e3a11e06e1c8cc9f66fd Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Thu, 15 Jul 2021 12:58:54 -0400 Subject: delete pages that were never translated from en-US (de, part 1) (#1548) --- files/de/web/api/eventtarget/index.html | 174 -------------------------------- 1 file changed, 174 deletions(-) delete mode 100644 files/de/web/api/eventtarget/index.html (limited to 'files/de/web/api/eventtarget/index.html') diff --git a/files/de/web/api/eventtarget/index.html b/files/de/web/api/eventtarget/index.html deleted file mode 100644 index 3ed264119e..0000000000 --- a/files/de/web/api/eventtarget/index.html +++ /dev/null @@ -1,174 +0,0 @@ ---- -title: EventTarget -slug: Web/API/EventTarget -tags: - - API - - DOM - - DOM Events - - Interface - - NeedsTranslation - - TopicStub -translation_of: Web/API/EventTarget ---- -

{{ApiRef("DOM Events")}}

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EventTarget is an interface implemented by objects that can receive events and may have listeners for them.

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{{domxref("Element")}}, {{domxref("document")}}, and {{domxref("window")}} are the most common event targets, but other objects can be event targets too, for example {{domxref("XMLHttpRequest")}}, {{domxref("AudioNode")}}, {{domxref("AudioContext")}}, and others.

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Many event targets (including elements, documents, and windows) also support setting event handlers via on... properties and attributes.

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Methods

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{{domxref("EventTarget.addEventListener()")}}
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Register an event handler of a specific event type on the EventTarget.
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{{domxref("EventTarget.removeEventListener()")}}
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Removes an event listener from the EventTarget.
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{{domxref("EventTarget.dispatchEvent()")}}
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Dispatch an event to this EventTarget.
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Additional methods for Mozilla chrome code

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Mozilla extensions for use by JS-implemented event targets to implement on* properties. See also WebIDL bindings.

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Example:

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Simple implementation of EventTarget

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var EventTarget = function() {
-  this.listeners = {};
-};
-
-EventTarget.prototype.listeners = null;
-EventTarget.prototype.addEventListener = function(type, callback) {
-  if (!(type in this.listeners)) {
-    this.listeners[type] = [];
-  }
-  this.listeners[type].push(callback);
-};
-
-EventTarget.prototype.removeEventListener = function(type, callback) {
-  if (!(type in this.listeners)) {
-    return;
-  }
-  var stack = this.listeners[type];
-  for (var i = 0, l = stack.length; i < l; i++) {
-    if (stack[i] === callback){
-      stack.splice(i, 1);
-      return;
-    }
-  }
-};
-
-EventTarget.prototype.dispatchEvent = function(event) {
-  if (!(event.type in this.listeners)) {
-    return true;
-  }
-  var stack = this.listeners[event.type];
-  event.target = this;
-  for (var i = 0, l = stack.length; i < l; i++) {
-    stack[i].call(this, event);
-  }
-  return !event.defaultPrevented;
-};
-
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{{ EmbedLiveSample('_Simple_implementation_of_EventTarget') }}

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Specifications

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SpecificationStatusComment
{{SpecName('DOM WHATWG', '#interface-eventtarget', 'EventTarget')}}{{Spec2('DOM WHATWG')}}No change.
{{SpecName('DOM3 Events', 'DOM3-Events.html#interface-EventTarget', 'EventTarget')}}{{Spec2('DOM3 Events')}}A few parameters are now optional (listener), or accepts the null value (useCapture).
{{SpecName('DOM2 Events', 'events.html#Events-EventTarget', 'EventTarget')}}{{Spec2('DOM2 Events')}}Initial definition.
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Browser compatibility

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{{CompatibilityTable}}

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FeatureChromeEdgeFirefox (Gecko)Internet ExplorerOperaSafari (WebKit)
Basic support1.0{{CompatVersionUnknown}}{{CompatGeckoDesktop("1")}}9.071.0[1]
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FeatureAndroidEdgeFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support1.0{{CompatVersionUnknown}}{{CompatGeckoMobile("1")}}9.06.01.0
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[1] window.EventTarget does not exist.

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See Also

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