Differences Between jQuery .bind() vs .live() vs .delegate() vs .on() Methods

_snippet.html

<ul id="members" data-role="listview" data-filter="true">
    <!-- ... more list items ... -->
    <li>
        <a href="detail.html?id=10">
            <h3>John Resig</h3>
            <p><strong>jQuery Core Lead</strong></p>
            <p>Boston, United States</p>
        </a>
    </li>
    <!-- ... more list items ... -->
</ul>

bind.js

/* The .bind() method attaches the event handler directly to the DOM 
   element in question ( "#members li a" ). The .click() method is 
   just a shorthand way to write the .bind() method. */

$( "#members li a" ).bind( "click", function( e ) {} ); 
$( "#members li a" ).click( function( e ) {} ); 

delegate.js

/* The .delegate() method behaves in a similar fashion to the .live() 
   method, but instead of attaching the event handler to the document, 
   you can choose where it is anchored ( "#members" ). The selector 
   and event information ( "li a" & "click" ) will be attached to the 
   "#members" element. */

$( "#members" ).delegate( "li a", "click", function( e ) {} );

jquery-1.7.1.js

// ... more code ...

bind: function( types, data, fn ) {
    return this.on( types, null, data, fn );
},
unbind: function( types, fn ) {
    return this.off( types, null, fn );
},

live: function( types, data, fn ) {
    jQuery( this.context ).on( types, this.selector, data, fn );
    return this;
},
die: function( types, fn ) {
    jQuery( this.context ).off( types, this.selector || "**", fn );
    return this;
},

delegate: function( selector, types, data, fn ) {
    return this.on( types, selector, data, fn );
},
undelegate: function( selector, types, fn ) {
    return arguments.length == 1 ? 
        this.off( selector, "**" ) : 
        this.off( types, selector, fn );
},

// ... more code ...

live.js

/* The .live() method attaches the event handler to the root level 
   document along with the associated selector and event information 
   ( "#members li a" & "click" ) */ 

$( "#members li a" ).live( "click", function( e ) {} );

on.js

/* The jQuery .bind(), .live(), and .delegate() methods are just one 
   line pass throughs to the new jQuery 1.7 .on() method */

// Bind
$( "#members li a" ).on( "click", function( e ) {} ); 
$( "#members li a" ).bind( "click", function( e ) {} ); 

// Live
$( document ).on( "click", "#members li a", function( e ) {} ); 
$( "#members li a" ).live( "click", function( e ) {} );

// Delegate
$( "#members" ).on( "click", "li a", function( e ) {} ); 
$( "#members" ).delegate( "li a", "click", function( e ) {} );