1 files changed, 14 insertions, 0 deletions
diff --git a/lib/utils.ts b/lib/utils.ts
index cb15e830..4d987902 100644
--- a/lib/utils.ts
+++ b/lib/utils.ts
@@ -275,3 +275,17 @@ export function formatHtml(html: string): string {
   
   return result.join('\n');
 }
+
+
+export function compareItemNumber(a?: string, b?: string) {
+  const as = (a ?? "").split(".").map((v) => Number(v));
+  const bs = (b ?? "").split(".").map((v) => Number(v));
+
+  const len = Math.max(as.length, bs.length);
+  for (let i = 0; i < len; i++) {
+    const av = Number.isFinite(as[i]) ? as[i] : Number.NEGATIVE_INFINITY; // 부모가 먼저
+    const bv = Number.isFinite(bs[i]) ? bs[i] : Number.NEGATIVE_INFINITY;
+    if (av !== bv) return av - bv;
+  }
+  return as.length - bs.length;
+}
+\ No newline at end of file