1
2<select id="myselect">
3    <option value="1">Mr</option>
4    <option value="2">Mrs</option>
5    <option value="3">Ms</option>
6    <option value="4">Dr</option>
7    <option value="5">Prof</option>
8</select>
9
10<script>
11$( "#myselect option:selected" ).val();
12</script>

1 $("#mySelect option:selected").html();

1$( "#myselect option:selected" ).text();

1$("select.your-select").change(function(){ 
2	$(this).children("option:selected").val();
3});

1$("select.country").change(function(){
2  var selectedCountry = $(this).children("option:selected").val();
3  alert("You have selected the country - " + selectedCountry);
4});

1$("#vacc_wellness_agegroups option:selected").val();