useCached

使用自定义比较器缓存引用。

¥Cache a ref with a custom comparator.

示例

源代码演练场

Value: 42

Extra: 0

Cached Value: 42

Cached Extra: 0

Temp Value:

Local Extra:

用法

¥Usage

TypeScript

import { useCached } from '@vueuse/core'
import { shallowRef } from 'vue'

interface Data {
  value: number
  extra: number
}

const source = shallowRef<Data>({ value: 42, extra: 0 })
const cached = useCached(source, (a, b) => a.value === b.value)

source.value = {
  value: 42,
  extra: 1,
}

console.log(cached.value) // { value: 42, extra: 0 }

source.value = {
  value: 43,
  extra: 1,
}

console.log(cached.value) // { value: 43, extra: 1 }

import { useCached } from '@vueuse/core'
import { shallowRef } from 'vue'
const source = shallowRef({ value: 42, extra: 0 })
const cached = useCached(source, (a, b) => a.value === b.value)
source.value = {
  value: 42,
  extra: 1,
}
console.log(cached.value) // { value: 42, extra: 0 }
source.value = {
  value: 43,
  extra: 1,
}
console.log(cached.value) // { value: 43, extra: 1 }