> For the complete documentation index, see [llms.txt](https://willking.gitbook.io/rebb-val/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://willking.gitbook.io/rebb-val/list-of-rules/localization.md).

# Localization

{% hint style="success" %}
All rules in this page can be applies to `string`
{% endhint %}

## GBcode

Validates the input is a valid [Administrative division codes of the People's Republic of China](https://en.wikipedia.org/wiki/Administrative_division_codes_of_the_People%27s_Republic_of_China) , a.k.a. GBcode.

```java
v.val("100101", "is gbcode"); // true
```

## Postal code (Comming soon)

Validates the input is a valid [postal code in the People's Republic of China](https://en.wikipedia.org/wiki/List_of_postal_codes_in_China).

```java
v.val("201200", "is postal"); // true
```