jquery uses data method to get events on an element_jquery
JQuery’s events bound to elements can be retrieved using the data method
Get it through $(element).data("events")
// 比如给一个button绑定两个click事件
$("button").click(function() { alert("1") });
$("button").click(function() { alert("2") });
// 这个时候点击该button会分别弹出 2 和1的alert框
// 取出该button的所有click事件，是个数组
$("button").data('events').clickYou will see two arrays of click events
Get the array, you can adjust the order and then set it back
$("button").data('events').click = newEventArray;The following is the test page for this method:
<span style="font-size:18px;"><%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE HTML>
<html>
<head>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>测试jquery动态改变事件</title>
<script type="text/javascript" src="/static/lib/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="/static/lib/jquery.cookie.min.js"></script>
<script type="text/javascript" src="/static/lib/util.min.js"></script>
<script type="text/javascript" src="/static/lib/jquery.bgiframe.min.js"></script>
<script type="text/javascript" src="/static/lib/jshashtable.min.js"></script>
</head>
<body>
<h1>该demo用于测试jquery附加了事件以后可不可以动态改变事件有无，及顺序</h1>
<input id="btn" type="button" value="点击我执行事件,分别执行三个次序弹窗"/><br/>
<input id="btn_clear" type="button" value="点击清空执行事件，清空后第一个按钮无反应"/><br/>
<input id="btn_revert" type="button" value="点击还原执行事件，点击后第一个按钮又会有反应"/><br/>
<input id="btn_seq" type="button" value="点击我改变执行事件顺序，顺序会改变"/><br/>
<script type="text/javascript">
$(document).ready(function(){
$("#btn").click(function(){
alert(1);
});
$("#btn").click(function(){
alert(2);
});
$("#btn").click(function(){
alert(3);
});
var _arr_events= $("#btn").data("events")["click"];
$("#btn_clear").click(function(){
$("#btn").data("events")["click"]=undefined;
});
$("#btn_revert").click(function(){
$("#btn").data("events")["click"]=_arr_events;
});
});
</script>
</body>
</html>
</span>
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