on(), live(), bind() 之间有什么区别呢

Question

jQuery中看着实现的效果都是一样的，不知道有什么具体区别呢？

Answer 1

http://api.jquery.com/live/
Attach an event handler for all elements which match the current selector, now and in the future. (动态生成的也行)

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http://api.jquery.com/bind/
Handlers are attached to the currently selected elements in the jQuery object, so those elements must exist at the point the call to .bind() occurs. (先决条件,绑定的dom element必须已经存在)
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As of jQuery 1.7, the .on() method is the preferred method for attaching event handlers to a document.

手册上有相关用法例子

$("a.offsite").live("click", function(){ alert("Goodbye!"); });               
$(document).on("click", "a.offsite", function(){ alert("Goodbye!"); });
$('#foo').bind('click', function() {alert('User clicked on "foo."');});

on的这个$(document), 请参考 http://stackoverflow.com/questions/81...