js/jquery.event.drag-2.3.0.js
function( obj ){
                // read the interaction data
                var data = $.data( this, drag.datakey ),
                    // read any passed options
                    opts = obj.data || {};
                // count another realted event
                data.related += 1;
                // extend data options bound with this event
                // don't iterate "opts" in case it is a node
                $.each( drag.defaults, function( key, def ){
                    if ( opts[ key ] !== undefined )
                        data[ key ] = opts[ key ];
                });
            }
function( obj ){
                // read the interaction data
                var data = $.data( this, drag.datakey ),
                    // read any passed options
                    opts = obj.data || {};
                // count another realted event
                data.related += 1;
                // extend data options bound with this event
                // don't iterate "opts" in case it is a node
                $.each( drag.defaults, function( key, def ){
                    if ( opts[ key ] !== undefined )
                        data[ key ] = opts[ key ];
                });
            }
function ( obj ) { // read the interaction data var data = $ . data ( this , drag . datakey ) , // read any passed options opts = obj . data || { } ; // count another realted event data . related += 1 ; // extend data options bound with this event // don't iterate "opts" in case it is a node $ . each ( drag . defaults , function ( key , def ) { if ( opts [ key ] !== undefined ) data [ key ] = opts [ key ] ; } ) ; }
count bound related events
count bound related events