day 04 task complete

Author: Sanchitbajaj02

day04/leetcode2665.js

@@ -0,0 +1,29 @@
+// 2665. Counter II
+// URL -> https://leetcode.com/problems/counter-ii/
+
+/**
+ * @param {integer} init
+ * @return { increment: Function, decrement: Function, reset: Function }
+ */
+var createCounter = function (init) {
+  var preset = init;
+
+  return {
+    increment: function () {
+      return ++init;
+    },
+    decrement: function () {
+      return --init;
+    },
+    reset: function () {
+      return init = preset
+    }
+  }
+};
+
+/**
+* const counter = createCounter(5)
+* counter.increment(); // 6
+* counter.reset(); // 5
+* counter.decrement(); // 4
+*/