Created
August 21, 2016 20:03
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pure javascript scrollTop function
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function scrollTo(element, to, duration) { | |
if (duration < 0) return; | |
var difference = to - element.scrollTop; | |
var perTick = difference / duration * 2; | |
setTimeout(function() { | |
element.scrollTop = element.scrollTop + perTick; | |
scrollTo(element, to, duration - 2); | |
}, 10); | |
} | |
document.querySelector('.js-top-button').onclick = function () { | |
scrollTo(document.body, 0, 100); | |
}; |
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rename plz -- scrollTop.js -> scrollTo.js