set selected option select2 code example

Example 1: select2 add option

// Set the value, creating a new option if necessary
if ($('#mySelect2').find("option[value='" + data.id + "']").length) {
    $('#mySelect2').val(data.id).trigger('change');
} else { 
    // Create a DOM Option and pre-select by default
    var newOption = new Option(data.text, data.id, true, true);
    // Append it to the select
    $('#mySelect2').append(newOption).trigger('change');
}

Example 2: how to set value select2

$('#sel_users').select2().trigger('change');

$(document).ready(function(){

  // Initialize Select2
  $('#sel_users').select2();

  // Set option selected onchange
  $('#user_selected').change(function(){
    var value = $(this).val();

    // Set selected 
    $('#sel_users').val(value);
    $('#sel_users').select2().trigger('change');

  });
});