JAVASCRIPT

select2 get selected value

//get all selected select object
$('#select2Id').find(':selected');

//get all selected value 
$("#select2Id").select2("val");

jquery to set value in select2 dropdown button

$("#u20_cre").select2().val(["1","6"]).trigger("change");

Select options of Select2 control based on values using Jquery

$('#mySelect2').val('1'); // Select the option with a value of '1'
$('#mySelect2').trigger('change'); // Notify any JS components that the value changed

get select2 selected value jquery

$('#id :selected').text();

Select options of Select2 control based on values using Jquery

$('#mySelect2').val(['1', '2']);
$('#mySelect2').trigger('change'); // Notify any JS components that the value changed