4a3ce4cc1d
Add comprehensive reference documentation for: - Vitest: environments, projects/workspaces, type testing, vi utilities - Pinia: HMR, Nuxt integration, SSR setup - Vue: built-in components (Transition, Teleport, Suspense, KeepAlive) and advanced directives
55 lines
1.2 KiB
Markdown
55 lines
1.2 KiB
Markdown
---
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category: Watch
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---
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# watchDeep
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Shorthand for watching value with `{deep: true}`
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## Usage
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Similar to `watch`, but with `{ deep: true }`
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```ts
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import { watchDeep } from '@vueuse/core'
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const nestedObject = ref({ foo: { bar: { deep: 5 } } })
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watchDeep(nestedObject, (updated) => {
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console.log(updated)
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})
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onMounted(() => {
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nestedObject.value.foo.bar.deep = 10
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})
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```
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## Type Declarations
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```ts
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export declare function watchDeep<
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T extends Readonly<MultiWatchSources>,
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Immediate extends Readonly<boolean> = false,
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>(
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source: [...T],
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cb: WatchCallback<MapSources<T>, MapOldSources<T, Immediate>>,
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options?: Omit<WatchOptions<Immediate>, "deep">,
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): WatchHandle
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export declare function watchDeep<
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T,
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Immediate extends Readonly<boolean> = false,
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>(
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source: WatchSource<T>,
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cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
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options?: Omit<WatchOptions<Immediate>, "deep">,
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): WatchHandle
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export declare function watchDeep<
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T extends object,
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Immediate extends Readonly<boolean> = false,
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>(
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source: T,
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cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
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options?: Omit<WatchOptions<Immediate>, "deep">,
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): WatchHandle
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```
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