From 548eb2af09af4984d75a07f181863d027569999f Mon Sep 17 00:00:00 2001
From: Grzegorz Kucmierz <gkucmierz@gmail.com>
Date: Wed, 20 Nov 2019 23:18:12 +0100
Subject: [PATCH] Most valuable character

---
 most-valuable-character/index.js | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 most-valuable-character/index.js

diff --git a/most-valuable-character/index.js b/most-valuable-character/index.js
new file mode 100644
index 0000000..05dfab4
--- /dev/null
+++ b/most-valuable-character/index.js
@@ -0,0 +1,11 @@
+// https://www.codewars.com/kata/most-valuable-character/javascript
+
+function solve(st) {
+  return [...new Set([...st])].map(c => {
+    return [c, st.lastIndexOf(c) - st.indexOf(c)];
+  }).sort((a, b) => {
+    const c = b[1] - a[1];
+    if (c === 0) return a[0].localeCompare(b[0]);
+    return c;
+  })[0][0];
+}