What does "scroll-event-interval" mean

I’m still learning to use Ionic Framework and I noticed the use of “scroll-event-interval” in this tutorial but I don’t really understand what it does. I couldn’t find anything about it in ionic docs and noticed it’s not a custom directive.

Please where can I read more about it? Thanks!

Since our scroller is a JS scroll, we need to translate touch events. Scroll-event-interval does that. It translates you dragging and tells the scroller how far and what direction to move your content.

Thanks for your reply. It helps!