diff --git a/snippets/dropRightWhile.md b/snippets/dropRightWhile.md
index 48f496f51..4242132da 100644
--- a/snippets/dropRightWhile.md
+++ b/snippets/dropRightWhile.md
@@ -7,8 +7,9 @@ Returns the remaining elements.
 
 ```js
 const dropRightWhile = (arr, func) => {
-  while (arr.length > 0 && !func(arr[arr.length - 1])) arr = arr.slice(0, -1);
-  return arr;
+  let rightIndex = arr.length;
+  while (rightIndex-- && !func(arr[rightIndex]));
+  return arr.slice(0, rightIndex + 1);
 };
 ```