Review feedback on supporting multiple relatives in node-grid columns

client/app/scripts/utils/array-utils.js

@@ -28,5 +28,14 @@ export function moveElement(array, from, to) {
 }
 
 export function intersperse(items, value) {
+  //
+  // intersperse([1, 2, 3], 'a') => [1, 'a', 2, 'a', 3]
+  //
+  // Useful for when you wanna do: [<MyReactListItem />, <MyReactListItem />].join(' ')
+  // But you can't because React Components aren't strings.
+  //
+  // intersperse([<MyReactListItem />, <MyReactListItem />], ' ')
+  // Will get you there!
+  //
   return [].concat(...items.map(e => [value, e])).slice(1);
 }