Detect if a scroll event is triggered manually in jQuery

Question

This question was already asked here a long time ago:

Detect jquery event trigger by user or call by code

But it has never been answered conclusively (or m

Answer 1

Maybe :animated selector will help you:

$('#scroller').scroll(function(e) {
    if ($(this).is(':animated')) {
        console.log('scroll happen by animate');
    } else if (e.originalEvent) {
        // scroll happen manual scroll
        console.log('scroll happen manual scroll');
    } else {
        // scroll happen by call
        console.log('scroll happen by call');
    }
});

Demo