Refactored 01-2

Author: Custi

2018/01/index.js

@@ -13,17 +13,11 @@ console.log(`Result 1: ${part1}`);
 // Part 2
 const frequencies = new Set();
 let freq = 0;
-for (let i = 0; i < changes.length; i++) {
+let i = 0;
+while (true) {
  freq += changes[i];
-
- if (frequencies.has(freq)) {
- console.log(`Result 2: ${freq}`);
- process.exit();
- }
-
+ if (frequencies.has(freq)) break;
  frequencies.add(freq);
- 
- if (i === changes.length - 1) {
- i = -1;
- }
+ i = (i + 1) % changes.length;
 }
+console.log(`Result 2: ${freq}`);