[#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.
pishoyg · Aug 11, 2024 · b7a9259 · b7a9259
1 parent 8a57a3a
commit b7a9259
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diff --git 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
@@ -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);
+    }
 });