They hide that sort of information in the documentation[^], the little buggers!
Use of the .live() method is no longer recommended since later versions of jQuery offer better methods that do not have its drawbacks. In particular, the following issues arise with the use of .live():
jQuery attempts to retrieve the elements specified by the selector before calling the .live() method, which may be time-consuming on large documents.
Chaining methods is not supported. For example, $("a").find(".offsite, .external").live( ... ); is not valid and does not work as expected.
Since all .live() events are attached at the document element, events take the longest and slowest possible path before they are handled.
On mobile iOS (iPhone, iPad and iPod Touch) the click event does not bubble to the document body for most elements and cannot be used with .live() without applying one of the following workarounds:
Use natively clickable elements such as a or button, as both of these do bubble to document.
Use .on() or .delegate() attached to an element below the level of document.body, since mobile iOS does bubble within the body.
Apply the CSS style cursor:pointer to the element that needs to bubble clicks (or a parent including document.documentElement). Note however, this will disable copy\paste on the element and cause it to be highlighted when touched.
Calling event.stopPropagation() in the event handler is ineffective in stopping event handlers attached lower in the document; the event has already propagated to document.
The .live() method interacts with other event methods in ways that can be surprising, e.g., $(document).unbind("click") removes all click handlers attached by any call to .live()!
Last Visit: 31-Dec-99 19:00 Last Update: 27-Nov-15 10:25