Answers for "select2 event selected value"

select2.org events

$('#mySelect2').on('select2:select', function (e) {
    var data = e.params.data;
    console.log(data);
});

select2 preselect option

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

select2 find option by value

$('#Select2ID option[value="actualVal"]).text()