js select data changes code example

Example 1: select onchange jquery get the selected option data attribute

$('#country').on('change', function(){
    let id = $(this).find(':selected').data('id');
    console.log(id);
  });

Example 2: js select on change value

document.getElementById('my-select').addEventListener('change', function() {
  console.log('You selected: ', this.value);
});