jquery get selected option value onchange code example

Example 1: .on change get value

$('select').on('change', function() {
  alert( this.value );
});

Example 2: select onchange get value jquery

$('#the_id_select').on('change', function() {
  alert( this.value );
});

//or

$("#the_id_select").change(function(){
   alert( this.value );
});