jquery-appear-original
It implements a custom 'appear'/'disappear' events which are fired when an element became visible/invisible in the browser view port.
jquery-appear-poetic
It implements a custom 'appear'/'disappear' events which are fired when an element became visible/invisible in the browser view port.
dom-track
Minimal utility for observing DOM elements appearing and disappearing using callbacks or Promises.
jquery.scrolling
A lightweight jQuery plugin for detecting Viewport scrolling. It implements a custom 'scrollin'/'scrollout' events which are fired when an element come inside / goes outside the browser viewport.
