Create 2535-difference-between-element-sum-and-digit-sum-of-an-array.js

javascript/2535-difference-between-element-sum-and-digit-sum-of-an-array.js

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+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var differenceOfSum = function (nums) {
+    let elementSum = eval(nums.join("+")); // element sum of nums using eval()
+    let digitSum = 0; // initialize digitSum to zero
+    for (let i = 0; i < nums.length; i++) { // iterate through the every element of the array
+        if (nums[i] > 9) { // if number is greater than 9
+            let sum = eval(String(nums[i]).split("").join("+")); // conver number to string and then array and again to string and sum using eval()
+            digitSum = digitSum + sum;
+        } else {
+            digitSum = digitSum + nums[i]; // add nums[i] to digitsum if number is less than 9
+        }
+    }
+    let ans = Math.abs(elementSum - digitSum); // find absolute difference of elementSum and digitSum
+    return ans; // return answer
+};