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usePrevious

Category
Export Size
260 B
Last Changed
5 months ago

Holds the previous value of a ref.

Usage

ts
import { ref } from 'vue'
import { usePrevious } from '@vueuse/core'

const counter = ref('Hello')
const previous = usePrevious(counter)

console.log(previous.value) // undefined

counter.value = 'World'

console.log(previous.value) // Hello
import { ref } from 'vue'
import { usePrevious } from '@vueuse/core'

const counter = ref('Hello')
const previous = usePrevious(counter)

console.log(previous.value) // undefined

counter.value = 'World'

console.log(previous.value) // Hello

Source

SourceDocs

Contributors

Anthony Fu

Changelog

v10.0.0-beta.4 on 4/13/2023
4d757 - feat(types)!: rename MaybeComputedRef to MaybeRefOrGetter
10e98 - feat(toRef)!: rename resolveRef to toRef
v9.12.0 on 1/29/2023
e101f - feat: new function

Released under the MIT License.