jquery select change get selected option code example
Example 1: jquery get selected option value
var selectedOptionText = $('#mySelectID').find(":selected").text();//selected option text
var selectedOptionVal = $('#mySelectID').find(":selected").val();//selected option value
Example 2: set select option as selected jquery
$(document).ready(function() {
$("#gate option[value='Gateway 2']").prop('selected', true);
// you need to specify id of combo to set right combo, if more than one combo
});