VueUsewatchArray ​
Watch for an array with additions and removals.
Usage ​
Similar to watch, but provides the added and removed elements to the callback function. Pass { deep: true } if the list is updated in place with push, splice, etc.
ts
import { watchArray } from '@vueuse/core'
const list = ref([1, 2, 3])
watchArray(list, (newList, oldList, added, removed) => {
console.log(newList) // [1, 2, 3, 4]
console.log(oldList) // [1, 2, 3]
console.log(added) // [4]
console.log(removed) // []
})
onMounted(() => {
list.value = [...list.value, 4]
})import { watchArray } from '@vueuse/core'
const list = ref([1, 2, 3])
watchArray(list, (newList, oldList, added, removed) => {
console.log(newList) // [1, 2, 3, 4]
console.log(oldList) // [1, 2, 3]
console.log(added) // [4]
console.log(removed) // []
})
onMounted(() => {
list.value = [...list.value, 4]
})Source ​
Contributors ​
Anthony Fu
sun0day
Di Weng