# useRouteAnnouncer

> This composable observes the page title changes and updates the announcer message accordingly.

<important>

This composable is available in Nuxt v3.12+.

</important>

## Description

A composable which observes the page title changes and updates the announcer message accordingly. Used by [`<NuxtRouteAnnouncer>`](/docs/3.x/api/components/nuxt-route-announcer) and controllable.
It hooks into Unhead's `dom:rendered` hook to read the page's title and set it as the announcer message.

## Parameters

- `politeness`: Sets the urgency for screen reader announcements: `off` (disable the announcement), `polite` (waits for silence), or `assertive` (interrupts immediately).  (default `polite`).

## Properties

### `message`

- **type**: `Ref<string>`
- **description**: The message to announce

### `politeness`

- **type**: `Ref<string>`
- **description**: Screen reader announcement urgency level `off`, `polite`, or `assertive`

## Methods

### `set(message, politeness = "polite")`

Sets the message to announce with its urgency level.

### `polite(message)`

Sets the message with `politeness = "polite"`

### `assertive(message)`

Sets the message with `politeness = "assertive"`

## Example

```vue [pages/index.vue]
<script setup lang="ts">
const { message, politeness, set, polite, assertive } = useRouteAnnouncer({
  politeness: 'assertive',
})
</script>
```