update

app/utils/helper.ts

@@ -1,6 +1,11 @@
-export function makeFirstCharUpper(val: string) {
-  if (val === "") return val;
-  const firstChar = val.at(0)?.toLocaleUpperCase() || "";
-  const otherChar = val.slice(1);
-  return firstChar + otherChar;
+// Utility functions
+
+/**
+ * Makes the first character of a string uppercase.
+ * @param str - The string to transform.
+ * @returns The transformed string.
+ */
+export function makeFirstCharUpper(str: string): string {
+  if (!str) return "";
+  return str.charAt(0).toUpperCase() + str.slice(1);
 }