javascript OnClick 事件 - 检查哪个是发件人
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OnClick event - check which is the sender
提问by petko_stankoski
Is there a way to call one event every time when something on my page is clicked (whether a control or something else), and then in that function to check which is the sender?
有没有办法在每次单击我页面上的某些内容（无论是控件还是其他内容）时调用一个事件，然后在该函数中检查哪个是发件人？
回答by Mathletics
like this?
像这样？
$(document).click(function(e) {
console.log(e.target);
});
This will capture all clicks in the document and log the node on which the event started. It's a bit of a sledgehammer approach, but without understanding the problem it's the best I can do.
这将捕获文档中的所有点击并记录事件开始的节点。这有点像大锤的方法，但在不了解问题的情况下，这是我能做的最好的事情。
回答by asawyer
Well you could do something like:
那么你可以做这样的事情：
$(function(){
$('*').click(function(){
var $sender = $(window.event.target);
});
});
However, you'll have all sorts of propegation issues I'd imagine, plus I dont know if all dom elements respond to the .click()event.
但是，您会遇到我想象中的各种传播问题，而且我不知道是否所有 dom 元素都响应该.click()事件。
It'd be better to tag all the items you want to be clickable with a class name, so it becomes:
最好用一个类名标记你想要点击的所有项目，所以它变成：
$(function(){
$('.clickable').click(function(){
var $sender = $(window.event.target);
});
});
What exactly are you trying to accomplish?
你到底想完成什么？
回答by Shyju
You can identify which item being clicked like this. The below script will take care of all a tag in your page.
您可以像这样识别被点击的项目。下面的脚本将处理您页面中的所有标签。
$(function(){
$("a").click(function(e){
// e.preventDefault(); prevent default behaviour if needed
alert("Invoked from "+$(this).attr("id"));
});
});?
Working sample : http://jsfiddle.net/yBfUq/2/
工作示例：http: //jsfiddle.net/yBfUq/2/
回答by Matthew Riches
There is indeed, although I cannot think of any reason you would want to do this?
确实有，虽然我想不出你想要这样做的任何理由？
$(document).ready(function() {
$("body *").click(function(event){
alert($(this).attr('id'));
})
});
This will alert the id, but you can make it so anything you want based on the "sender".
这将提醒 id，但您可以根据“发件人”设置任何您想要的内容。
