From 82b56b49731e37a3f43ce118116fcb0b39ae7be1 Mon Sep 17 00:00:00 2001
From: Chesterkxng <cgoita00@gmail.com>
Date: Wed, 10 Dec 2025 16:43:04 +0100
Subject: [PATCH] Chore: - 'file' util added - getFileExtension method

---
 src/utils/file.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 src/utils/file.ts

diff --git a/src/utils/file.ts b/src/utils/file.ts
new file mode 100644
index 0000000..a3200ac
--- /dev/null
+++ b/src/utils/file.ts
@@ -0,0 +1,11 @@
+/**
+ * Returns the file extension
+ *
+ * @param {string} filename - The filename
+ * @return {string} - the file extension
+ */
+export function getFileExtension(filename: string): string {
+  const lastDot = filename.lastIndexOf('.');
+  if (lastDot <= 0) return ''; // No extension
+  return filename.slice(lastDot + 1).toLowerCase();
+}