get a select option value jquery 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: get text of selected option jquery
$('#id').children(':selected').text();
Example 3: jquery select option by value
$('.id_100 option[value=val2]').attr('selected','selected');
Example 4: get selected option value jquery
$("#vacc_wellness_agegroups option:selected").val();