diff --git a/README.md b/README.md
index 0b4a10c..e95954e 100644
--- a/README.md
+++ b/README.md
@@ -473,6 +473,14 @@ el.addEventListener('click', myClickHandler, {
 });
 
 ```
+#  Most frequent element in an array.
+```javascript
+const mostFrequent = arr =>
+  Object.entries(
+    arr.reduce((a, v) => {
+      a[v] = a[v] ? a[v] + 1 : 1;
+      return a;
+    }, {})
+  ).reduce((a, v) => (v[1] >= a[1] ? v : a), [null, 0])[0];
 
-
-
+```