From c8ec2640cbb0b45470c085db8ea68439c6d12207 Mon Sep 17 00:00:00 2001
From: Khang Nguyen Duy <40488299+iceghost@users.noreply.github.com>
Date: Sun, 7 Jan 2024 22:43:46 +0700
Subject: [PATCH] fix: hide semester error when undefined

---
 src/routes/+page.svelte | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 3f77366..72c8972 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -27,7 +27,7 @@
 	let name: string;
 
 	$: timetable = process(raw, kind);
-	$: if (!`${semester}`.match(/^\d+[123]$/)) {
+	$: if (semester !== undefined && !`${semester}`.match(/^\d+[123]$/)) {
 		error = new Error('mã học kỳ sai định dạng. ví dụ mã đúng: 231, 232, 233.');
 	} else {
 		error = null;