How do I listen for step up event for input type="number"

Question

I want to be able to listen to <input type="number" /> step UP (increment) and step down events with jQuery. (currently I can only understand how to listen to change event)

Answer 1

There is no event for up and down. You can use change event

$(".counter").change(function () {
   alert($(this).val());      
})

DEMO

You can try something like, You can store previous value and compare with currently value and identify up or down

$(".counter").change(function () {
    if ($(this).data('old-value') < $(this).val()) {
        alert('Alert up');
    } else {
        alert('Alert dowm');
    }
    $(this).data('old-value', $(this).val());
})

DEMO