jquery override event

问题

I have an anchor like this

<a href='#' onclick='return showform(this)'>click me</a>

But I want to be able to override the onclick function, how to do this in jquery?

because it seems when I add

$('a').click( function() { alert('hi there!'); } );

the new click handler is not overriding the old one

回答1:

Have you tried something like this:

$("a").removeAttr("onclick");

回答2:

In your case the onCick event is overriding the jQuery one. What you might be able to do is:

$('a').unbind('click').click(function(){
    alert('why hello there children.');
})

But I believe this would have to be included after the

<a href='#' onclick='return showform(this)'>click me</a>

That said, you should really not be using onClicks anyway... it makes the code really hard to maintain and change (as you have found out).

回答3:

If you're using jQuery like this, you don't want any handlers in the HTML. Can't you just remove the onClick attribute?

If you're worried about breaking stuff, search and replace on:

 onclick='return showform(this)'

and replace with

class='showform'

Then you can do:

$('a.showform').click(function (e) {
    e.preventDefault();
    return showform(this);
});

which will keep your existing handlers working.

回答4:

There is a plugin for it, but you should only do this when you really need to. The plugin allows you to call the original function or ignore/replace it entirely

jQuery Override Plugin

$(divElementObj).override('onclick', 'click', function(...));

来源：https://stackoverflow.com/questions/1927845/jquery-override-event