fixed linter errors

algorithms/JavaScript/src/arrays/single-occurring-element.js

@@ -1,14 +1,15 @@
-// Problem: Given an array of integers, every element appears twice except for one. Find that single one.
+// Problem: Given an array of integers, 
+// every element appears twice except for one. Find that single one.
 // Space Complexity: O(1)
 // Time Complexity: O(n)
 
 function singleOccurringElement(arr) {
-    let result = 0;
+  let result = 0;
-    for(let el of arr) {
+  for (const el of arr) {
-        result ^= el;
+      result ^= el;
-    }
+  }
-    return result;
+  return result;
 }
 
 const arr = [2, 5, 7, 3, 1, 8, 8, 9, 4, 2, 7, 1, 4, 9, 5];
-console.log(singleOccurringElement(arr));
+console.log(singleOccurringElement(arr));