(function( jQuery ) {
var windowData = {},
- rnum = /^-?\d+(?:\.\d+)$/;
+ rbrace = /^(?:\{.*\}|\[.*\])$/,
+ rdigit = /\d/;
jQuery.extend({
cache: {},
jQuery.fn.extend({
data: function( key, value ) {
- if ( typeof key === "undefined" && this.length ) {
- return jQuery.data( this[0] );
+ if ( typeof key === "undefined" ) {
+ return this.length ? jQuery.data( this[0] ) : null;
} else if ( typeof key === "object" ) {
return this.each(function() {
data = this[0].getAttribute( "data-" + key );
if ( typeof data === "string" ) {
- data = data === "true" ? true :
- data === "false" ? false :
- data === "null" ? null :
- rnum.test( data ) ? parseFloat( data ) :
- data;
+ try {
+ data = data === "true" ? true :
+ data === "false" ? false :
+ data === "null" ? null :
+ rdigit.test( data ) && !isNaN( data ) ? parseFloat( data ) :
+ rbrace.test( data ) ? jQuery.parseJSON( data ) :
+ data;
+ } catch( e ) {}
} else {
data = undefined;