javascript当中事件派发(dispatchEvent)的用法
12.事件派发(dispatchEvent)
马克-to-win：下例仔细剖析了dispatchEvent。
例 12.1（DispatchEventFireIEFF.html）
<HTML>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
</HEAD>
<BODY>
<select οnchange="alert('select onchange event');" id="select1">
<option>1</option>
<option>2</option>
</select>
<INPUT TYPE="button" value="按这" οnclick="clickButton()">
<script type="text/javascript">
function clickButton() {undefined
alert("click button");
var t = document.getElementById('select1')
if (document.all) {undefined
t.fireEvent("onchange");
alert("ie");
}
else {undefined
var evt = document.createEvent('HTMLEvents');
evt.initEvent('change', true, true);
t.dispatchEvent(evt);
}
}
</script>
按button也会发出option的select事件
</BODY>
</HTML>
更多内容请见原文，文章转载自：https://blog.csdn.net/qq_43650923/article/details/102985114
