null-undefinedのidを戻す

na-trium-144 · na-trium-144 · commit 5578eed8219a · 2026-03-24T02:16:47.000+09:00
diff --git a/public/docs/javascript/1-basics/2-4-undefined-null.md b/public/docs/javascript/1-basics/2-4-undefined-null.md
@@ -1,5 +1,5 @@
 ---
-id: javascript-basics-undefined-null
+id: javascript-basics-null-undefined
 title: undefined と null
 level: 3
 question:
