nl_tokens: Internal method . This decrements or increments the indices of views after the added / removed view to keep in sync with the collection .
pl_tokens: function ( view , increment , <mask> ) { if ( ! this . getOption ( 'sort' ) ) { return ; } if ( increment ) { // assign the index to the view view . _index = index ; } // update the indexes of views after this one this . children . each ( function ( laterView ) { if ( laterView . _index >= view . _index ) { laterView . _index += increment ? 1 : - 1 ; } } ) ; }