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1.6 KiB
1.6 KiB
category
| category |
|---|
| Array |
useArrayUnique
reactive unique array
Usage
Use with array of multiple refs
import { useArrayUnique } from '@vueuse/core';
const item1 = ref(0);
const item2 = ref(1);
const item3 = ref(1);
const item4 = ref(2);
const item5 = ref(3);
const list = [item1, item2, item3, item4, item5];
const result = useArrayUnique(list);
// result.value: [0, 1, 2, 3]
item5.value = 1;
// result.value: [0, 1, 2]
Use with reactive array
import { useArrayUnique } from '@vueuse/core';
const list = reactive([1, 2, 2, 3]);
const result = useArrayUnique(list);
// result.value: [1, 2, 3]
list.push(1);
// result.value: [1, 2, 3]
Use with custom function
import { useArrayUnique } from '@vueuse/core';
const list = reactive([
{ id: 1, name: 'foo' },
{ id: 2, name: 'bar' },
{ id: 1, name: 'baz' },
]);
const result = useArrayUnique(list, (a, b) => a.id === b.id);
// result.value: [{ id: 1, name: 'foo' }, { id: 2, name: 'bar' }]
list.push({ id: 1, name: 'qux' });
// result.value: [{ id: 1, name: 'foo' }, { id: 2, name: 'bar' }]
Type Declarations
export type UseArrayUniqueReturn<T = any> = ComputedRef<T[]>;
/**
* reactive unique array
* @see https://vueuse.org/useArrayUnique
* @param list - the array was called upon.
* @param compareFn
* @returns A computed ref that returns a unique array of items.
*
* @__NO_SIDE_EFFECTS__
*/
export declare function useArrayUnique<T>(
list: MaybeRefOrGetter<MaybeRefOrGetter<T>[]>,
compareFn?: (a: T, b: T, array: T[]) => boolean,
): UseArrayUniqueReturn<T>;