node.js - magic suggest allowDuplicates and clear not working -

i using magicsuggest in js file, allowduplicates , clear not working can u please me??

var msf = $('#specific-friends-list').magicsuggest({             required : true,             data : '/only/friends',             minchars : 2,             valuefield : 'id',             allowduplicates : false,             allowfreeentries : false,                     });         msf.clear();