add error

Author: corwintines

src/utils/translations.ts

@@ -6,9 +6,11 @@ import i18nConfigs from "../../i18n/config.json"
 export type TranslationKey = string
 
 export const isLangRightToLeft = (lang: Lang): boolean => {
-  const langConfig = i18nConfigs.filter(
-    (language) => language.code === lang
-  )
+  const langConfig = i18nConfigs.filter((language) => language.code === lang)
+
+  if (!langConfig.length)
+    throw new Error("Language code not found in isLangRightToLeft")
+
   return langConfig[0].langDir === "rtl"
 }