From 7b9122d0ddd9741b744070b71c6681f71fe27564 Mon Sep 17 00:00:00 2001
From: Heikki Hellgren <heikki.hellgren@op.fi>
Date: Thu, 29 Feb 2024 09:09:14 +0200
Subject: [PATCH] fix: undefined group in final results

this closes #27
---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 31f0dc8..024e057 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -165,7 +165,7 @@ async function analyse(input?: string | string[], opts: T.Options = {}): Promise
 		}
 		// Set parent to result group if it is present
 		// Is nullish if either `opts.childLanguages` is set or if there is no group
-		const finalResult = !opts.childLanguages && result && langData[result].group || result;
+		const finalResult = !opts.childLanguages && result && langData[result] && langData[result].group || result;
 		if (!fileAssociations[file].includes(finalResult))
 			fileAssociations[file].push(finalResult);
 		extensions[file] = paths.extname(file).toLowerCase();