Select2 get update value

input type hidden value and get value in ID

jQuery(function($) {
 //var selectedValues = val(subject;?>).split(',');
 var selectedsub = $("#subjectval").val().split(',');
 var selectedrelevant_law = $("#relevant_lawval").val().split(',');
 var selectedsectionval = $("#relevant_sectionval").val().split(',');
 var selectedcourtval = $("#courtval").val().split(',');
 var selectedjudgeval = $("#judgeval").val().split(',');
 var selectedadvocateval = $("#advocateval").val().split(',');
 $("#subject").select2().select2('val',selectedsub);
 $("#relevant_law").select2().select2('val',selectedrelevant_law);
 $("#relevant_section").select2().select2('val',selectedsectionval);
 $("#court").select2().select2('val',selectedcourtval);
 $("#judge").select2().select2('val',selectedjudgeval);
 $("#advocate").select2().select2('val',selectedadvocateval);

});