From 284c2544f1e8b2e216986a8a9e7affe34d328cb0 Mon Sep 17 00:00:00 2001
From: Afiq Nazrie <afnazrie@gmail.com>
Date: Mon, 4 Oct 2021 15:49:26 +0800
Subject: [PATCH] Add explanation of step and move variables (#3823)

---
 content/tutorial/tutorial.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/content/tutorial/tutorial.md b/content/tutorial/tutorial.md
index 936a6126..32fbe3b3 100644
--- a/content/tutorial/tutorial.md
+++ b/content/tutorial/tutorial.md
@@ -1045,6 +1045,8 @@ Let's `map` over the `history` in the Game's `render` method:
 
 **[View the full code at this point](https://codepen.io/gaearon/pen/EmmGEa?editors=0010)**
 
+As we iterate through `history` array, `step` variable refers to the current `history` element value, and `move` refers to the current `history` element index. We only interested in `move` here, hence `step` is not getting assigned to anything.
+
 For each move in the tic-tac-toe game's history, we create a list item `<li>` which contains a button `<button>`. The button has a `onClick` handler which calls a method called `this.jumpTo()`. We haven't implemented the `jumpTo()` method yet. For now, we should see a list of the moves that have occurred in the game and a warning in the developer tools console that says:
 
 >  Warning: