---
category: Elements
---

# useActiveElement

Reactive `document.activeElement`

## Usage

```vue
<script setup lang="ts">
import { useActiveElement } from '@vueuse/core'
import { watch } from 'vue'

const activeElement = useActiveElement()

watch(activeElement, (el) => {
  console.log('focus changed to', el)
})
</script>
```

## Component Usage

```vue
<template>
  <UseActiveElement v-slot="{ element }">
    Active element is {{ element?.dataset.id }}
  </UseActiveElement>
</template>
```

## Type Declarations

```ts
export interface UseActiveElementOptions
  extends ConfigurableWindow,
    ConfigurableDocumentOrShadowRoot {
  /**
   * Search active element deeply inside shadow dom
   *
   * @default true
   */
  deep?: boolean
  /**
   * Track active element when it's removed from the DOM
   * Using a MutationObserver under the hood
   * @default false
   */
  triggerOnRemoval?: boolean
}
/**
 * Reactive `document.activeElement`
 *
 * @see https://vueuse.org/useActiveElement
 * @param options
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function useActiveElement<T extends HTMLElement>(
  options?: UseActiveElementOptions,
): ShallowRef<T | null | undefined, T | null | undefined>
export type UseActiveElementReturn = ReturnType<typeof useActiveElement>
```