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2695-array-wrapper/2695-array-wrapper.js

@@ -0,0 +1,29 @@
+/**
+ * @param {number[]} nums
+ * @return {void}
+ */
+var ArrayWrapper = function(nums) {
+    this.nums = nums
+};
+
+/**
+ * @return {number}
+ */
+ArrayWrapper.prototype.valueOf = function() {
+    return this.nums.reduce((a,b) => a + b, 0)
+}
+
+/**
+ * @return {string}
+ */
+ArrayWrapper.prototype.toString = function() {
+    return JSON.stringify(this.nums)
+}
+
+/**
+ * const obj1 = new ArrayWrapper([1,2]);
+ * const obj2 = new ArrayWrapper([3,4]);
+ * obj1 + obj2; // 10
+ * String(obj1); // "[1,2]"
+ * String(obj2); // "[3,4]"
+ */