VueUseuseArrayFindIndex
Reactive Array.findIndex
Usage
Use with array of multiple refs
import { useArrayFindIndex } from '@vueuse/core'
const item1 = ref(0)
const item2 = ref(2)
const item3 = ref(4)
const item4 = ref(6)
const item5 = ref(8)
const list = [item1, item2, item3, item4, item5]
const result = useArrayFindIndex(list, i => i % 2 === 0)
// result.value: 0
item1.value = 1
// result.value: 1
import { useArrayFindIndex } from '@vueuse/core'
const item1 = ref(0)
const item2 = ref(2)
const item3 = ref(4)
const item4 = ref(6)
const item5 = ref(8)
const list = [item1, item2, item3, item4, item5]
const result = useArrayFindIndex(list, i => i % 2 === 0)
// result.value: 0
item1.value = 1
// result.value: 1
Use with reactive array
import { useArrayFindIndex } from '@vueuse/core'
const list = ref([0, 2, 4, 6, 8])
const result = useArrayFindIndex(list, i => i % 2 === 0)
// result.value: 0
list.value.unshift(-1)
// result.value: 1
import { useArrayFindIndex } from '@vueuse/core'
const list = ref([0, 2, 4, 6, 8])
const result = useArrayFindIndex(list, i => i % 2 === 0)
// result.value: 0
list.value.unshift(-1)
// result.value: 1
Type Declarations
/**
* Reactive `Array.findIndex`
*
* @see https://vueuse.org/useArrayFindIndex
* @param {Array} list - the array was called upon.
* @param fn - a function to test each element.
*
* @returns {number} the index of the first element in the array that passes the test. Otherwise, "-1".
*/
export declare function useArrayFindIndex<T>(
list: MaybeComputedRef<MaybeComputedRef<T>[]>,
fn: (element: T, index: number, array: MaybeComputedRef<T>[]) => unknown
): ComputedRef<number>
/**
* Reactive `Array.findIndex`
*
* @see https://vueuse.org/useArrayFindIndex
* @param {Array} list - the array was called upon.
* @param fn - a function to test each element.
*
* @returns {number} the index of the first element in the array that passes the test. Otherwise, "-1".
*/
export declare function useArrayFindIndex<T>(
list: MaybeComputedRef<MaybeComputedRef<T>[]>,
fn: (element: T, index: number, array: MaybeComputedRef<T>[]) => unknown
): ComputedRef<number>
Source
Contributors
Changelog
v9.0.0-beta.2 on 7/24/2022