Input event not working if value is changed with jQuery val() or JavaScript

Question

If I change the value of an input field programmatically, the input and change events are not firing. For example, I have this scenario:

Answer 1

var $input = $('#myinput');

$input.on('input', function() {
  // Do this when value changes
  alert($input.val());
});

$('#change').click(function() {
  // Change the value
  $input.val($input.val() + 'x');
});

Change value