diff --git a/snippets/sortedIndex.md b/snippets/sortedIndex.md
index 1a959f91e..8a514a0dd 100644
--- a/snippets/sortedIndex.md
+++ b/snippets/sortedIndex.md
@@ -1,15 +1,16 @@
 ### sortedIndex
 
-Returns the lowest index at which value should be inserted into array in order to maintain its sort order
+Returns the lowest index at which value should be inserted into array in order to maintain its sort order.
+
+Check if the array is sorted in descending order (loosely).
+Use `Array.findIndex()` to find the appropriate index where the element should be inserted.
 
 ```js
-const sortedIndex = (arr,n) => {
-    arr[0] > arr[1] ? (anarray = arr.reverse(),isReversed = true) : (anarray = arr,isReversed = false);  
-	val = anarray.findIndex( el => {
-	return n <= el
-    })
-	return val === -1 ? arr.length : isReversed ? arr.length - val : val
-}
+const sortedIndex = (arr, n) => {
+  const isDescending = arr[0] > arr[arr.length - 1];
+  const index = arr.findIndex(el => isDescending ? n >= el : n <= el);
+  return index === -1 ? arr.length : index;
+};
 ```
 
 ```js