# useExtensionLanguage

Returns the buyer's language, as supported by the extension.

## 

### UseExtensionLanguageGeneratedType

Returns the buyer's language, as supported by the extension.

#### Returns: Language
export function useExtensionLanguage<
  ID extends RenderExtensionPoint = RenderExtensionPoint,
>(): Language {
  const {localization} = useApi<ID>();

  return useSubscription(localization.extensionLanguage);
}


### Language

### isoCode

value: `string`

The BCP-47 language tag. It may contain a dash followed by an ISO 3166-1 alpha-2 region code.

## Related

- [StandardApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/standardapi)
- [CheckoutApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/checkoutapi)
- [OrderStatusApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/orderstatusapi)
- [CartLineDetailsApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/cartlinedetailsapi)
- [PickupPointsApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/pickuppointsapi)
- [PickupLocationsApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/pickuplocationsapi)
- [ShippingMethodDetailsApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/shippingmethoddetailsapi)
- [ExtensionPoints](https://shopify.dev/docs/api/checkout-ui-extensions/apis/extensionpoints)