Create 2485-find-the-pivot-integer.js

Author: chetannada

Diff for: javascript/2485-find-the-pivot-integer.js

@@ -0,0 +1,26 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var pivotInteger = function (n) {
+
+    // initialize function sum with parameter start and end to find sum between start and end and return num
+    function sum(start, end) {
+        let num = 0;
+        for (let i = start; i <= end; i++) {
+            num += i;
+        }
+        return num;
+    }
+
+    // loop through the 1 to n
+    for (let i = 1; i <= n; i++) {
+
+        // if sum of 1 to i and sum of i to n is equal then return i
+        if (sum(1, i) == sum(i, n)) {
+            return i;
+        }
+    }
+
+    return -1; // otherwise return -1
+};