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1.2 KiB
1.2 KiB
category
| category |
|---|
| Array |
useArrayFindLast
Reactive Array.findLast.
Usage
import { useArrayFindLast } from '@vueuse/core';
const list = [ref(1), ref(-1), ref(2)];
const positive = useArrayFindLast(list, (val) => val > 0);
// positive.value: 2
Use with reactive array
import { useArrayFindLast } from '@vueuse/core';
const list = reactive([-1, -2]);
const positive = useArrayFindLast(list, (val) => val > 0);
// positive.value: undefined
list.push(10);
// positive.value: 10
list.push(5);
// positive.value: 5
Type Declarations
export type UseArrayFindLastReturn<T = any> = ComputedRef<T | undefined>;
/**
* Reactive `Array.findLast`
*
* @see https://vueuse.org/useArrayFindLast
* @param list - the array was called upon.
* @param fn - a function to test each element.
*
* @returns the last element in the array that satisfies the provided testing function. Otherwise, undefined is returned.
*
* @__NO_SIDE_EFFECTS__
*/
export declare function useArrayFindLast<T>(
list: MaybeRefOrGetter<MaybeRefOrGetter<T>[]>,
fn: (element: T, index: number, array: MaybeRefOrGetter<T>[]) => boolean,
): UseArrayFindLastReturn<T>;