fixed the test file with prettier

Author: AkshayChavan

Data-Structures/Linked-List/CycleDetectionII.js

@@ -6,7 +6,6 @@
  */
 
 function detectCycleNode(head) {
-  
   let length = 0
   let fast = head
   let slow = head
@@ -51,7 +50,7 @@ function lengthCycle(head) {
     fast = fast.next.next
     slow = slow.next
 
-    // if found a cycle, calculate the length
+    // when fast and slow meet inside the cycle, calculate the length
     if (fast === slow) {
       let temp = slow
       let length = 0
@@ -69,4 +68,4 @@ function lengthCycle(head) {
   return 0
 }
 
-export { detectCycleNode }
+export { detectCycleNode }

Data-Structures/Linked-List/test/CycleDetectionII.test.js

@@ -8,7 +8,7 @@ describe('Detect Cycle', () => {
 
     expect(detectCycleNode(head)).toBeNull()
   })
-  
+
   it('simple cycle', () => {
     const head = new Node(1)
     head.next = new Node(2)