vueuse
Use when working with VueUse composables - track mouse position with useMouse, manage localStorage with useStorage, detect network status with useNetwork, debounce values with refDebounced, and access browser APIs reactively. Check VueUse before writing custom composables - most patterns already implemented.
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- TuYv/ccpm
- 最近来源活动
- 2026年6月28日 00:16
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来源说明 · 只读预览- name
- vueuse
- description
- Use when working with VueUse composables - track mouse position with useMouse, manage localStorage with useStorage, detect network status with useNetwork, debounce values with refDebounced, and access browser APIs reactively. Check VueUse before writing custom composables - most patterns already implemented.
- license
- MIT
# VueUse
Collection of essential Vue Composition utilities. Check VueUse before writing custom composables - most patterns already implemented.
**Current stable:** VueUse 14.x for Vue 3.5+
## Installation
**Vue 3:**
```bash
pnpm add @vueuse/core
```
**Nuxt:**
```bash
pnpm add @vueuse/nuxt @vueuse/core
```
```ts
// nuxt.config.ts
export default defineNuxtConfig({
modules: ['@vueuse/nuxt'],
})
```
Nuxt module auto-imports composables - no import needed.
## Categories
| Category | Examples |
| ---------- | ---------------------------------------------------------- |
| State | useLocalStorage, useSessionStorage, useRefHistory |
| Elements | useElementSize, useIntersectionObserver, useResizeObserver |
| Browser | useClipboard, useFullscreen, useMediaQuery |
| Sensors | useMouse, useKeyboard, useDeviceOrientation |
| Network | useFetch, useWebSocket, useEventSource |
| Animation | useTransition, useInterval, useTimeout |
| Component | useVModel, useVirtualList, useTemplateRefsList |
| Watch | watchDebounced, watchThrottled, watchOnce |
| Reactivity | createSharedComposable, toRef, toReactive |
| Array | useArrayFilter, useArrayMap, useSorted |
| Time | useDateFormat, useNow, useTimeAgo |
| Utilities | useDebounce, useThrottle, useMemoize |
## Quick Reference
Load composable files based on what you need:
| Working on... | Load file |
| -------------------- | ------------------------------------------------------ |
| Finding a composable | [references/composables.md](references/composables.md) |
| Specific composable | `composables/<name>.md` |
## Loading Files
**Consider loading these reference files based on your task:**
- [ ] [references/composables.md](references/composables.md) - if searching for VueUse composables by category or functionality
**DO NOT load all files at once.** Load only what's relevant to your current task.
## Common Patterns
**State persistence:**
```ts
const state = useLocalStorage('my-key', { count: 0 })
```
**Mouse tracking:**
```ts
const { x, y } = useMouse()
```
**Debounced ref:**
```ts
const search = ref('')
const debouncedSearch = refDebounced(search, 300)
```
**Shared composable (singleton):**
```ts
const useSharedMouse = createSharedComposable(useMouse)
```
## SSR Gotchas
Many VueUse composables use browser APIs unavailable during SSR.
**Check with `isClient`:**
```ts
import { isClient } from '@vueuse/core'
if (isClient) {
// Browser-only code
const { width } = useWindowSize()
}
```
**Wrap in onMounted:**
```ts
const width = ref(0)
onMounted(() => {
// Only runs in browser
const { width: w } = useWindowSize()
width.value = w.value
})
```
**Use SSR-safe composables:**
```ts
// These check isClient internally
const mouse = useMouse() // Returns {x: 0, y: 0} on server
const storage = useLocalStorage('key', 'default') // Uses default on server
```
**`@vueuse/nuxt` auto-handles SSR** - composables return safe defaults on server.
## Target Element Refs
When targeting component refs instead of DOM elements:
```ts
import type { MaybeElementRef } from '@vueuse/core'
// Component ref needs .$el to get DOM element
const compRef = ref<ComponentInstance>()
const { width } = useElementSize(compRef) // ❌ Won't work
// Use MaybeElementRef pattern
import { unrefElement } from '@vueuse/core'
const el = computed(() => unrefElement(compRef)) // Gets .$el
const { width } = useElementSize(el) // ✅ Works
```
**Or access `$el` directly:**
```ts
const compRef = ref<ComponentInstance>()
onMounted(() => {
const el = compRef.value?.$el as HTMLElement
const { width } = useElementSize(el)
})
```
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