From f8d04a6f3e3cba4bb2ec034c7771373b18b34bf6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=AD=A6=E7=94=B0=20=E6=86=B2=E5=A4=AA=E9=83=8E?=
 <takeda@youmind.jp>
Date: Sun, 26 May 2024 12:42:38 +0900
Subject: [PATCH] perf: streamline getting min and max heading level

---
 lib/plugins/helper/toc.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/plugins/helper/toc.ts b/lib/plugins/helper/toc.ts
index 94fc8401c1..f933e177e8 100644
--- a/lib/plugins/helper/toc.ts
+++ b/lib/plugins/helper/toc.ts
@@ -114,8 +114,9 @@ function getAndTruncateTocObj(str: string, options: {min_depth: number, max_dept
     return data;
   }
 
-  const min = Math.min(...data.map(item => item.level));
-  const max = Math.max(...data.map(item => item.level));
+  const levels = data.map(item => item.level);
+  const min = Math.min(...levels);
+  const max = Math.max(...levels);
 
   for (let currentLevel = max; data.length > max_items && currentLevel > min; currentLevel--) {
     data = data.filter(item => item.level < currentLevel);