f5792c40be
Pulled ALL skills from 15 source repositories: - anthropics/skills: 16 (docs, design, MCP, testing) - obra/superpowers: 14 (TDD, debugging, agents, planning) - coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth) - better-auth/skills: 5 (auth patterns) - vercel-labs/agent-skills: 5 (React, design, Vercel) - antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo) - Plus 13 individual skills from various repos Mosaic Stack is not limited to coding — the Orchestrator and subagents serve coding, business, design, marketing, writing, logistics, analysis, and more. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
68 lines
1.4 KiB
Markdown
68 lines
1.4 KiB
Markdown
---
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category: Browser
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---
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# useFavicon
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Reactive favicon
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## Usage
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```ts {3}
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import { useFavicon } from '@vueuse/core'
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const icon = useFavicon()
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icon.value = 'dark.png' // change current icon
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```
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### Passing a source ref
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You can pass a `ref` to it, changes from of the source ref will be reflected to your favicon automatically.
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```ts {7}
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import { useFavicon, usePreferredDark } from '@vueuse/core'
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import { computed } from 'vue'
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const isDark = usePreferredDark()
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const favicon = computed(() => isDark.value ? 'dark.png' : 'light.png')
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useFavicon(favicon)
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```
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When a source ref is passed, the return ref will be identical to the source ref
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```ts
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import { useFavicon } from '@vueuse/core'
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// ---cut---
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const source = shallowRef('icon.png')
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const icon = useFavicon(source)
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console.log(icon === source) // true
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```
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## Type Declarations
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```ts
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export interface UseFaviconOptions extends ConfigurableDocument {
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baseUrl?: string
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rel?: string
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}
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/**
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* Reactive favicon.
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*
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* @see https://vueuse.org/useFavicon
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* @param newIcon
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* @param options
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*/
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export declare function useFavicon(
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newIcon: ReadonlyRefOrGetter<string | null | undefined>,
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options?: UseFaviconOptions,
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): ComputedRef<string | null | undefined>
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export declare function useFavicon(
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newIcon?: MaybeRef<string | null | undefined>,
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options?: UseFaviconOptions,
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): Ref<string | null | undefined>
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export type UseFaviconReturn = ReturnType<typeof useFavicon>
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```
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