From ed33c1400d1ba220109d2fe5f0b807be6b65ad29 Mon Sep 17 00:00:00 2001
From: Jerel Miller <jerelmiller@gmail.com>
Date: Wed, 14 Oct 2020 01:56:09 -0700
Subject: [PATCH] chore: more robust handling of finding previous step

---
 src/components/Tutorial.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/components/Tutorial.js b/src/components/Tutorial.js
index 529048a33..57b52cb91 100644
--- a/src/components/Tutorial.js
+++ b/src/components/Tutorial.js
@@ -25,10 +25,13 @@ const Tutorial = ({ children }) => {
         ];
       }
 
-      const previousStep =
-        idx === 0
-          ? new Map(initialState)
-          : new Map(steps[idx - 1].props.step || initialState);
+      const previousStep = new Map(
+        steps
+          .slice(0, idx)
+          .map((element) => element.props.step)
+          .reverse()
+          .find(Boolean) || initialState
+      );
 
       const { fileName, code, language } = parseCodeBlockProps(codeBlock);