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-rw-r--r--app/scripts/lib/get-first-preferred-lang-code.js7
1 files changed, 7 insertions, 0 deletions
diff --git a/app/scripts/lib/get-first-preferred-lang-code.js b/app/scripts/lib/get-first-preferred-lang-code.js
index e3635434e..5473fccf0 100644
--- a/app/scripts/lib/get-first-preferred-lang-code.js
+++ b/app/scripts/lib/get-first-preferred-lang-code.js
@@ -4,6 +4,13 @@ const allLocales = require('../../_locales/index.json')
const existingLocaleCodes = allLocales.map(locale => locale.code.toLowerCase().replace('_', '-'))
+/**
+ * Returns a preferred language code, based on settings within the user's browser. If we have no translations for the
+ * users preferred locales, 'en' is returned.
+ *
+ * @returns {Promise<string>} Promises a locale code, either one from the user's preferred list that we have a translation for, or 'en'
+ *
+ */
async function getFirstPreferredLangCode () {
const userPreferredLocaleCodes = await promisify(
extension.i18n.getAcceptLanguages,