Type:

(entry: Input, options?: HeadEntryOptions) => ActiveHeadEntry<Input>

Can be used to register and call the hooks of Unhead. Powered by Hookable.

Hooks are used for all core functionality within Unhead.

Examples

Call hook

import { createHead } from 'unhead'
const head = createHead()
// trigger DOM rendering
head.hooks.callHook('entries:updated')

Attach hook

import { createHead } from 'unhead'
const head = createHead({
  hooks: {
    init() { console.log('ready') }
  }
})

Available hooks

Core hooks

• 'init': ctx: Unhead<any>.
• 'entries:updated': ctx: Unhead<any>.
• 'entries:resolve': ctx: EntryResolveCtx<any>.
• 'tag:normalise': ctx: { tag: HeadTag; entry: HeadEntry<any>; resolvedOptions: CreateHeadOptions }.
• 'tags:beforeResolve': ctx: { tags: HeadTag[] }.
• 'tags:resolve': ctx: { tags: HeadTag[] }.

DOM hooks

• 'dom:beforeRender': ctx: ShouldRenderContext & { tags: DomRenderTagContext[] }.
• 'dom:renderTag': ctx: DomRenderTagContext, document: Document, and track: any.
• 'dom:rendered': ctx: { renders: DomRenderTagContext[] }.

SSR hooks

• 'ssr:beforeRender': ctx: ShouldRenderContext.
• 'ssr:render': ctx: { tags: HeadTag[] }.
• 'ssr:rendered': ctx: SSRRenderContext.