jquery option:selected").val() 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: jquery selected option text
$("#mySelect option:selected").html();
Example 3: get selected option value jquery
$("#vacc_wellness_agegroups option:selected").val();