How to set multiple selected value in Chosen Jquery Plugin?

If you require to set selected value in Chosen Jquery Plugin then you can done using val() with trigger(). Some days ago, i had worked my php project i needed to set selected value wiht chosen and also multiple selected value both. After some try i found how to do with if set single selected value using val().

But i was confuse with dropdown multiple selected value, but at last i found how to give value, we have to just pass array in val(). As bellow i mention both way how could done.

Set Single Value:

var my_val = 3;

$("#set-corsi").val(my_val).trigger("chosen:updated");

Set Multiple Value:

var my_val = 3,4,6;
var str_array = my_val.split(',');

$("#set-corsi").val(str_array).trigger("chosen:updated");