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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: dispatchEvent example
+slug: DOM/dispatchEvent_example
+tags:
+ - DOM
+ - Gecko
+ - Gecko DOM Reference
+translation_of: Web/Guide/Events/Creating_and_triggering_events
+---
+<div class="noinclude">
+ {{ApiRef}}</div>
+<p>次の例では DOM メソッドを使用してチェックボックスのクリックをシミュレート(※スクリプトでクリックイベントを生成)しています。</p>
+<pre>function simulateClick() {
+ var evt = <a href="/ja/docs/DOM/document.createEvent" title="DOM/document.createEvent">document.createEvent</a>("MouseEvents");
+ evt.<a href="/ja/docs/DOM/event.initMouseEvent" title="DOM/event.initMouseEvent">initMouseEvent</a>("click", true, true, window,
+ 0, 0, 0, 0, 0, false, false, false, false, 0, null);
+ var cb = document.getElementById("checkbox");
+ var canceled = !cb.<a href="/ja/docs/DOM/element.dispatchEvent" title="DOM/element.dispatchEvent">dispatchEvent</a>(evt);
+ if(canceled) {
+ // A handler called preventDefault
+ alert("canceled");
+ } else {
+ // None of the handlers called preventDefault
+ alert("not canceled");
+ }
+}</pre>
+<p><a class="button liveSample external" href="http://developer.mozilla.org/samples/domref/dispatchEvent.html">実際の表示を確認</a></p>