useFavicon

Reactive favicon

Usage

import { useFavicon } from '@vueuse/core'

const icon = useFavicon()

icon.value = 'dark.png' // change current icon

Passing a source ref

You can pass a ref to it, changes from of the source ref will be reflected to your favicon automatically.

import { useFavicon, usePreferredDark } from '@vueuse/core'
import { computed } from 'vue'

const isDark = usePreferredDark()
const favicon = computed(() => isDark.value ? 'dark.png' : 'light.png')

useFavicon(favicon)

When a source ref is passed, the return ref will be identical to the source ref

import { useFavicon } from '@vueuse/core'
// ---cut---
const source = shallowRef('icon.png')
const icon = useFavicon(source)

console.log(icon === source) // true