day 02 task complete

Author: Sanchitbajaj02

day02/leetcode2620.js

@@ -0,0 +1,19 @@
+// 2620. Counter
+// URL -> https://leetcode.com/problems/counter/
+
+/**
+ * @param {number} n
+ * @return {Function} counter
+ */
+var createCounter = function (n) {
+  return function () {
+    return n++;
+  };
+};
+
+/** 
+* const counter = createCounter(10)
+* counter() // 10
+* counter() // 11
+* counter() // 12
+*/