Why does the jquery change event not trigger when I set the value of a select using val()?

Question

The logic in the change() event handler is not being run when the value is set by val(), but it does run when user selects a value with their mouse

Answer 1

I believe you can manually trigger the change event with trigger():

$("#single").val("Single2").trigger('change');

Though why it doesn't fire automatically, I have no idea.