[Lexical] add null check for key undefined before calling toLowerCase…

… function (#6154)
facebook · May 21, 2024 · 6b4c1dc · 6b4c1dc
1 parent 6795e91
commit 6b4c1dc
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/packages/lexical/src/LexicalEvents.ts b/packages/lexical/src/LexicalEvents.ts
@@ -1005,6 +1005,10 @@ function onKeyDown(event: KeyboardEvent, editor: LexicalEditor): void {
     return;
   }
 
+  if (key == null) {
+    return;
+  }
+
   if (isMoveForward(key, ctrlKey, altKey, metaKey)) {
     dispatchCommand(editor, KEY_ARROW_RIGHT_COMMAND, event);
   } else if (isMoveToEnd(key, ctrlKey, shiftKey, altKey, metaKey)) {