useCloned

类别

Utilities

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最近修改

7 months ago

引用的响应式克隆。默认情况下，它使用 JSON.parse(JSON.stringify()) 进行克隆。

🌐 Reactive clone of a ref. By default, it use JSON.parse(JSON.stringify()) to do the clone.

示例

源代码在线运行

用法

🌐 Usage

import { useCloned } from '@vueuse/core'

const original = ref({ key: 'value' })

const { cloned } = useCloned(original)

original.value.key = 'some new value'

console.log(cloned.value.key) // 'value'

对源的更改不会立即反映在克隆引用中。使用 { flush: 'sync' } 可以立即获取更新的值。

🌐 Changes to the source are not reflected in the cloned ref immediately. Use { flush: 'sync' } to obtain the updated value without delay.

TypeScript

const { cloned } = useCloned(original, { flush: 'sync' })

original.value.key = 'some new value'

console.log(cloned.value.key) // 'some new value'

'use strict'
const { cloned } = useCloned(original, { flush: 'sync' })
original.value.key = 'some new value'
console.log(cloned.value.key) // 'some new value'

手动克隆

🌐 Manual cloning

import { useCloned } from '@vueuse/core'

const original = ref({ key: 'value' })

const { cloned, sync } = useCloned(original, { manual: true })

original.value.key = 'manual'

console.log(cloned.value.key) // 'value'

sync()

console.log(cloned.value.key)// 'manual'

自定义克隆函数

🌐 Custom Clone Function

以 klona 为例：

🌐 Using klona for example:

import { useCloned } from '@vueuse/core'
import { klona } from 'klona'

const original = ref({ key: 'value' })

const { cloned, isModified, sync } = useCloned(original, { clone: klona })