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snippets/scrollToTop.md

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+### scrollToTop
+
+Smooth-scrolls to the top of the page.
+
+Get distance from top using `document.documentElement.scrollTop` or `document.body.scrollTop`.
+Scroll by a fraction of the distance from top. Use `window.requestAnimationFrame()` to animate the scrolling.
+
+```js
+const scrollToTop = () => {
+  const c = document.documentElement.scrollTop || document.body.scrollTop;
+  if (c > 0) {
+    window.requestAnimationFrame(scrollToTop);
+    window.scrollTo(0, c - c / 8);
+  }
+};
+// scrollToTop()
+```