如何获得onclick调用对象? [英] How to get the onclick calling object?
问题描述
我需要在onclick事件的调用对象上有一个处理程序。
i need to have a handler on the calling object of onclick event
即
ie
<a href="123.com" onclick="click123(event);">link</a>
<script>
function click123(event)
{
//i need <a> so i can manipulate it with Jquery
}
</script>
我不想使用$()。click或$()。 jquery,但使用上面描述的方法。
I want to do this without the use of $().click or $().live of jquery but with the method described above.
推荐答案
传入这个
in内联点击处理程序
pass in this
in the inline click handler
<a href="123.com" onclick="click123(this);">link</a>
或者在函数中使用 event.target
(根据 W3C DOM Level 2事件模型)
or use event.target
in the function (according to the W3C DOM Level 2 Event model)
function click123(event)
{
var a = event.target;
}
当然, IE是不同的,所以处理这个问题的香草JavaScript方式是
But of course, IE is different, so the vanilla JavaScript way of handling this is
function doSomething(e) {
var targ;
if (!e) var e = window.event;
if (e.target) targ = e.target;
else if (e.srcElement) targ = e.srcElement;
if (targ.nodeType == 3) // defeat Safari bug
targ = targ.parentNode;
}
或更少详细信息
or less verbose
function doSomething(e) {
e = e || window.event;
var targ = e.target || e.srcElement;
if (targ.nodeType == 3) targ = targ.parentNode; // defeat Safari bug
}
其中 e
是传递给IE以外浏览器的函数的事件对象
。
where e
is the event object
that is passed to the function in browsers other than IE.
如果你尽管我使用jQuery,但我会强烈鼓励不显眼的JavaScript,并使用jQuery将事件处理程序绑定到元素。
If you're using jQuery though, I would strongly encourage unobtrusive JavaScript and use jQuery to bind event handlers to elements.
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