select box change event code example

Example 1: .on change get value

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

Example 2: on change jquery

$("input").change(function(){
  alert("The text has been changed.");
});

Example 3: jquery on element change

// On element change.
$('mydiv').bind('DOMSubtreeModified', function () {
  console.log('changed');
});