From dd1264c3e20258515d9e0d448b3b8071ff707ba1 Mon Sep 17 00:00:00 2001
From: Nikolay Markov <nikolai.markov@icloud.com>
Date: Tue, 4 Feb 2025 13:01:34 -0600
Subject: [PATCH] fix: safari Iterable map is undefined #33

---
 src/main.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main.js b/src/main.js
index 94c9f12..04e37c6 100644
--- a/src/main.js
+++ b/src/main.js
@@ -469,8 +469,9 @@ class FunkyHeatmap {
         let bodyWidth = 0;
         let nonZeroRotate = false;
         const groups = this.header.append('g');
+        const columnGroups = Array.from(this.columnGroups.values());
 
-        const nLevels = Math.max(...this.columnGroups.values().map(group => {
+        const nLevels = Math.max(...columnGroups.map(group => {
             let i = 1;
             while (true) {
                 if (group[`level${i}`] === undefined) {