From 97926b124317c3b6d9dc651a1f7d38326c250671 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Mon, 30 Jul 2018 15:35:28 +0300
Subject: [PATCH] Add comments to Linked List code.

---
 src/data-structures/linked-list/LinkedList.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/data-structures/linked-list/LinkedList.js b/src/data-structures/linked-list/LinkedList.js
index 4d6b9e26..ce5a2544 100644
--- a/src/data-structures/linked-list/LinkedList.js
+++ b/src/data-structures/linked-list/LinkedList.js
@@ -128,6 +128,7 @@ export default class LinkedList {
    */
   deleteTail() {
     const deletedTail = this.tail;
+
     if (this.head === this.tail) {
       // There is only one node in linked list.
       this.head = null;
@@ -135,6 +136,9 @@ export default class LinkedList {
 
       return deletedTail;
     }
+
+    // If there are many nodes in linked list...
+
     // Rewind to the last node and delete "next" link for the node before the last one.
     let currentNode = this.head;
     while (currentNode.next) {