From b7a92591e9c0293941f60b152cd151759fabbaf1 Mon Sep 17 00:00:00 2001
From: Pishoy Girgis <pishoybg@gmail.com>
Date: Sun, 11 Aug 2024 19:30:38 +0200
Subject: [PATCH] [#122][Flashcards/JavaScript] Avoid an idempotent log error
 message.

It doesn't have any impact, besides a harmless error message:
```
TypeError: Cannot read properties of null (reading 'split')
```
Still, it's cleaner to avoid it.
---
 flashcards/constants.py                                     | 6 ++++--
 .../output/html/a_coptic_dictionary__all_dialects/script.js | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/flashcards/constants.py b/flashcards/constants.py
index 1c4523c427..c5e4dfb2c0 100644
--- a/flashcards/constants.py
+++ b/flashcards/constants.py
@@ -117,8 +117,10 @@
         btn.classList.add('hover-link');
         btn.onclick = () => { dialect(btn.innerHTML); };
     });
-    (new URLSearchParams(window.location.search)).get('d').split(',').forEach(
-        dialect);
+    d = (new URLSearchParams(window.location.search)).get('d');
+    if (d !== undefined) {
+        d.split(',').forEach(dialect);
+    }
 """
 
 CRUM_CSS = """
diff --git a/flashcards/data/output/html/a_coptic_dictionary__all_dialects/script.js b/flashcards/data/output/html/a_coptic_dictionary__all_dialects/script.js
index db22d9780f..2a2d34bb64 100644
--- a/flashcards/data/output/html/a_coptic_dictionary__all_dialects/script.js
+++ b/flashcards/data/output/html/a_coptic_dictionary__all_dialects/script.js
@@ -101,6 +101,8 @@ window.addEventListener("load", function() {
         btn.classList.add('hover-link');
         btn.onclick = () => { dialect(btn.innerHTML); };
     });
-    (new URLSearchParams(window.location.search)).get('d').split(',').forEach(
-        dialect);
+    d = (new URLSearchParams(window.location.search)).get('d');
+    if (d !== undefined) {
+        d.split(',').forEach(dialect);
+    }
 });