> For the complete documentation index, see [llms.txt](https://docs.i18nifty.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.i18nifty.dev/api-reference/usdlang.md).

# $lang

`evtLang` enable you to  switch the language without using `useLang` that can only be used in a react component.  

```tsx
import { $lang } from "i18n";

setTimeout(
    ()=> {
        console.log(`The app is currently in ${evtLang.state}`);
        console.log("We switch to fr now!");
        //This will trigger components to re-render.
        $lang.current= "fr";
    },
    30_000
);
```

Have a global callback that is invoked whenever the language is changed.

```typescript
import { $lang } from "i18n";

evtLang
    .subscribe(lang=> console.log(`The app has just beed switched to ${lang}`));

```