一个函数绑定到许多对象的事件.其中一个对象触发事件,jQuery开始.我如何知道谁在
JavaScript函数中触发了事件？
我尝试使用函数[name](event){}并且在事件上戳,但是我得到“’data’为null或不是一个对象”.
这是我现在的代码：
<script type="text/javascript">
$(document).ready(function() {
$('.opening').bind("click",function(event) {
//code to populate event.data since right now,the tags don't hold the info...they will eventually with an XHTML custom namespace
event.data.building = "Student Center";
event.data.room = "Pacific Ballroom A";
event.data.s_time = "9/15/2009 8:00";
event.data.e_time = "9/15/2009 10:00";
indicatePreferenceByClick(event);
});
function indicatePreferenceByClick(event) {
alert("I got clicked and all I got was this alert Box.");
$("#left").load("../ReserveSpace/PreferenceByClick",{ building: event.data.building,room: event.data.room,s_time: event.data.s_time,e_time: event.data.e_time});
};
</script>
解决方法
这是一个完整页面的工作示例.调用者在console.log($caller.prop(“id”))中记录到控制台;
<!DOCTYPE html>
<html>
<head>
<Meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<title>Untitled 1</title>
<script src="https://code.jquery.com/jquery-2.2.3.min.js" integrity="sha256-a23g1Nt4dtEYOj7bR+vTu7+T8VP13humZFBJNIYoEJo=" crossorigin="anonymous"></script>
<script type="text/javascript">
$(document).ready(function() {
$('.opening').on("click",{building:"Student Center",room:"Pacific Ballroom A",s_time:"9/15/2009 8:00",e_time:"9/15/2009 10:00"},function(event) {
indicatePreferenceByClick(event);
});
function indicatePreferenceByClick(event) {
alert("I got clicked and all I got was this alert Box.");
var $caller = $(event.target);
console.log($caller.prop("id"));
var building = event.data.building;
var room = event.data.room;
var s_time = event.data.s_time;
var e_time = event.data.e_time;
};
});
</script>
</head>
<body>
<div style="padding:10px"><button type="button" id="button1" class="opening">button1</button></div>
<div style="padding:10px"><button type="button" id="button2" class="opening">button2</button></div>
</body>
</html>
