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rocka/scrollToTop.js

Created October 29, 2016 16:05
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JavaScript smoothly scroll to top
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scrollToTop.js
(function ScrollTop(ms) {
ms = ms || 500;
let length = pageYOffset;
let step = length * 1000 / ms / 60;
let inv = setInterval(() => {
scroll(pageXOffset, pageYOffset - step);
}, 16);
setTimeout(() => {
clearInterval(inv);
},ms);
})(500);
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