How can I determine the name of a JavaScript event handler function?_问答_开发者

How can I determine the name of a JavaScript event handler function?

开发者 https://www.devze.com 2022-12-16 18:59 出处：网络

I see some anchor elements on an html page like so <a href=\"javascript:void(0);\" class=\"clickable\">Click me</a>;

相关专题：dom javascript

I see some anchor elements on an html page like so

<a href="javascript:void(0);" class="clickable">Click me</a>;

The page assigns JavaScript event handlers to the an开发者_高级运维chor element on page load. After the page loads, I can click on the anchor element to fire a JavaScript operation.

I want to programmatically fire the anchor's event handler function, but I am unable to determine the event handler's function name because the relevant external JavaScript file is compressed, so it's difficult to trace the code. The compression obfuscated all the variable/function names and put everything on one line.

Can anyone suggest a way for me to programmatically fire the anchor's onclick event handler?

Thanks

To answer the question in your title: no, you can't. You can't get the name because there might not even be a name - it's become quite common to use anonymous functions for this purpose.

For the answer to your second question, see:

How can I programmatically invoke an onclick() event from a anchor tag while keeping the ‘this’ reference in the onclick function?

Is an alternative solution viable? Clicking on the link to invoke it's handler to simulate a user clicking, instead of trying to find the handler?

Something like this in jQuery:

$("a.clickable:first").click();

Update: Here's a working example to show how this works on DOM:

<html>
 <head></head>
 <body>
  <a href="javascript:void(0)" onclick="alert('I'm an alert!')">Click me</a>
  <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
  <script type="text/javascript">
   $(function() { $('a').click(); });
  </script>
 </body>
</html>