Update 457-circular-array-loop.js

Author: everthis

457-circular-array-loop.js

@@ -3,37 +3,37 @@
  * @return {boolean}
  */
 const circularArrayLoop = function(nums) {
-    let n = nums.length;
-    for (let i = 0; i < n; i++) {
-        if (nums[i] == 0) {
-            continue;
-        }
-        let j = i, k = getIndex(i, nums);
-        while (nums[k] * nums[i] > 0 && nums[getIndex(k, nums)] * nums[i] > 0) {
-            if (j === k) {
-                // check for loop with only one element
-                if (j === getIndex(j, nums)) {
-                    break;
-                }
-                return true;
-            }
-            j = getIndex(j, nums);
-            k = getIndex(getIndex(k, nums), nums);
-        }
-        // loop not found, set all element along the way to 0
-        j = i;
-        let val = nums[i];
-        while (nums[j] * val > 0) {
-            let next = getIndex(j, nums);
-            nums[j] = 0;
-            j = next;
+  let n = nums.length;
+  for (let i = 0; i < n; i++) {
+    if (nums[i] == 0) {
+      continue;
+    }
+    let j = i,
+      k = getNextIndex(i, nums);
+    while (nums[k] * nums[i] > 0 && nums[getNextIndex(k, nums)] * nums[i] > 0) {
+      if (j === k) {
+        // check for loop with only one element
+        if (j === getNextIndex(j, nums)) {
+          break;
         }
+        return true;
+      }
+      j = getNextIndex(j, nums);
+      k = getNextIndex(getNextIndex(k, nums), nums);
+    }
+    // loop not found, set all element along the way to 0
+    j = i;
+    let val = nums[i];
+    while (nums[j] * val > 0) {
+      let next = getNextIndex(j, nums);
+      nums[j] = 0;
+      j = next;
     }
-    return false;
+  }
+  return false;
 };
 
-    
-function getIndex(i, nums) {
-    const n = nums.length;
-    return i + nums[i] >= 0? (i + nums[i]) % n: n + ((i + nums[i]) % n);
+function getNextIndex(i, nums) {
+  const n = nums.length;
+  return i + nums[i] >= 0 ? (i + nums[i]) % n : n + ((i + nums[i]) % n);
 }