javascript - jQuery Plugin that makes animations happen at certain points when you scroll down -


i'm looking jquery plugin (or tutorial) allows me create javascript scrolling effect thingy.

i'm sure of have seen thousand times, here's an example in case don't know mean.

i don't know if plugin exists, should trivial task of monitoring scrolltop.

var tmr = window.setinterval(function() {   if ($(document).scrolltop() > 200) {     //trigger animation   } }), 100);

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