---
category: Component
---

# useMounted

Mounted state in ref.

## Usage

```ts
import { useMounted } from '@vueuse/core';

const isMounted = useMounted();
```

Which is essentially a shorthand of:

```ts
const isMounted = ref(false);

onMounted(() => {
  isMounted.value = true;
});
```

## Type Declarations

```ts
/**
 * Mounted state in ref.
 *
 * @see https://vueuse.org/useMounted
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function useMounted(): ShallowRef<boolean, boolean>;
```
