Will need that, makes sense why it wouldn't compile

src/components/chat/chat_layout_utils.js

@@ -0,0 +1,24 @@
+// Captures a scroll position
+export const getScrollPosition = () => {
+  return {
+    scrollTop: window.scrollY,
+    scrollHeight: document.documentElement.scrollHeight,
+    offsetHeight: window.innerHeight
+  }
+}
+
+// A helper function that is used to keep the scroll position fixed as the new elements are added to the top
+// Takes two scroll positions, before and after the update.
+export const getNewTopPosition = (previousPosition, newPosition) => {
+  return previousPosition.scrollTop + (newPosition.scrollHeight - previousPosition.scrollHeight)
+}
+
+export const isBottomedOut = (offset = 0) => {
+  const scrollHeight = window.scrollY + offset
+  const totalHeight = document.documentElement.scrollHeight - window.innerHeight
+  return totalHeight <= scrollHeight
+}
+// Returns whether or not the scrollbar is visible.
+export const isScrollable = () => {
+  return document.documentElement.scrollHeight > window.innerHeight
+}