javascript - Populate a html dropdownlist from a comma delimted JSON object with distinct values -

i have json object returns several key value pairs. 1 of languages key , contains comma separated values e.g "english, hindi,french" etc

what require distinct values language keys value , following dropdown list.

the following inputing language values dropdown not handling comma separating values, can please.

select language_

   $('#combolist-languages').html(function () {          var ret = '<option value="-1" selected>select language_</option>',             u = user.slice(),             arr = [];          (function get() {             if (u.length) {                 var v = u.shift();                 if ($.inarray(v.languages, arr) == -1) {                     arr.push(v.languages);                     ret += '<option value="">' + v.languages + '</option>';                 }                 get();             }         }());          return ret;     }); 

example link -

31.222.187.42/hca-consulting/farm/index.html

note following returns records db: search name > browse names

you can use javascript spilt function , put values array pass dropdown list.

for json key value pairs can separate "."