CODE EXAMPLE FOR JAVASCRIPT

jquery on change

// modify #inputId selector as per your code
$( "#inputId" ).change(function() {
  alert( "Handler for .change() called." );
});

//OR
$("#InputId").on('change', function(){
    alert( 'Handler for "change" called.' );
});

// OR
$("body").on('change', '#InputId', function(){
    alert( 'Handler for "change" called.' );
});