> Portal Navigation:
> 
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> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
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# Method name:

authentication.onLogout(handler: OnLogoutHandler)

# Method Link:

https://dev.wix.com/docs/sdk/host-modules/site/authentication/on-logout.md

# Method Description:

Registers a callback function to be called when a member logs out.

Use this function to run code after a member logs out, such as clearing cached data, updating the UI,
or redirecting to a public page.

# Method Permissions:



# Method Permissions Scopes IDs:

undefined



# Method Code Examples:

## Subscribe to logout events


```javascript
```typescript
import { onLogout } from '@wix/authentication';

const unsubscribe = onLogout(() => {
  console.log('Member logged out');
  // Clear any cached member data
  localStorage.removeItem('memberPreferences');
  // Redirect to home page
  window.location.href = '/';
});

// Later, to stop listening:
// unsubscribe();
```
```

## Handle logout with UI updates


```javascript
```typescript
import { onLogout, loggedIn } from '@wix/authentication';

function setupLogoutHandler() {
  const unsubscribe = onLogout(() => {
    // Hide member-only content
    document.querySelectorAll('.member-only').forEach(el => {
      el.style.display = 'none';
    });

    // Show login prompt
    document.getElementById('loginPrompt').style.display = 'block';
  });

  return unsubscribe;
}
```
```