From 840635e613c13b5dfd135b3dfc48eb4057783c05 Mon Sep 17 00:00:00 2001
From: Oleksii Trekhleb <trehleb@gmail.com>
Date: Mon, 9 Apr 2018 19:43:09 +0300
Subject: [PATCH] Add playground.

---
 src/data-structures/linked-list/LinkedList.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/data-structures/linked-list/LinkedList.js b/src/data-structures/linked-list/LinkedList.js
index d4ab790c..66dbdb90 100644
--- a/src/data-structures/linked-list/LinkedList.js
+++ b/src/data-structures/linked-list/LinkedList.js
@@ -133,15 +133,19 @@ export default class LinkedList {
     return deletedHead;
   }
 
-  toString(callback) {
-    const nodeStrings = [];
+  toArray() {
+    const nodes = [];
 
     let currentNode = this.head;
     while (currentNode) {
-      nodeStrings.push(currentNode.toString(callback));
+      nodes.push(currentNode);
       currentNode = currentNode.next;
     }
 
-    return nodeStrings.toString();
+    return nodes;
+  }
+
+  toString(callback) {
+    return this.toArray().map(node => node.toString(callback)).toString();
   }
 }