Fictitious jQuery persist method

Is there a way to have a declaration such as the following persist to all matching elements that are later added 开发者_如何学Pythonto the DOM?

$("a.my-class").replaceWith("<span>Replaced</span>");

Something along the lines of...

$("a.my-class").persist().replaceWith("<span>Replaced</span>");

(Persist is a fictitious method, that I hope conveys what I would like to accomplish.)

There isn't a method exactly like what you want, but if the content is being added using the jQuery AJAX methods, you can use this:

$("<div></div>").ajaxSuccess(function(){
   $("a.my-class").replaceWith("<span>Replaced</span>");
});

And this code will run after every successful AJAX request, provided the requests are made using a jQuery $.ajax call (including $.post or $.get). You only need to call this once on your page and it will trigger on any AJAX call made.

If you run into trouble with the replacement happening too soon:

$("<div></div>").ajaxSuccess(function(){
   window.setTimeout( function(){
       $("a.my-class").replaceWith("<span>Replaced</span>");
   }, 250);
});

The live() method in jquery does something similar but it is for events.

You could possibly use live() and the load event to achieve what you are looking for, something like (untested):

$("a.my-class").live('load',function(){
  $(this).replaceWith("<span>Replaced</span>");
});