MpxUseuseArrayFilter
响应式 Array.filter
用法
数组元素都是ref
js
import { useArrayFilter } 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 = useArrayFilter(list, i => i % 2 === 0)
// result.value: [0, 2, 4, 6, 8]
item2.value = 1
// result.value: [0, 4, 6, 8]
import { useArrayFilter } 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 = useArrayFilter(list, i => i % 2 === 0)
// result.value: [0, 2, 4, 6, 8]
item2.value = 1
// result.value: [0, 4, 6, 8]
响应式数组
js
import { useArrayFilter } from '@vueuse/core'
const list = ref([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
const result = useArrayFilter(list, i => i % 2 === 0)
// result.value: [0, 2, 4, 6, 8]
list.value.shift()
// result.value: [2, 4, 6, 8]
import { useArrayFilter } from '@vueuse/core'
const list = ref([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
const result = useArrayFilter(list, i => i % 2 === 0)
// result.value: [0, 2, 4, 6, 8]
list.value.shift()
// result.value: [2, 4, 6, 8]
类型声明
typescript
/**
* Reactive `Array.filter`
*
* @see https://mpxuse.cn/useArrayFilter
* @param {Array} list - the array was called upon.
* @param fn - a function that is called for every element of the given `list`. Each time `fn` executes, the returned value is added to the new array.
*
* @returns {Array} a shallow copy of a portion of the given array, filtered down to just the elements from the given array that pass the test implemented by the provided function. If no elements pass the test, an empty array will be returned.
*/
export declare function useArrayFilter<T>(
list: MaybeComputedRef<MaybeComputedRef<T>[]>,
fn: (element: T, index: number, array: T[]) => boolean
): ComputedRef<T[]>
/**
* Reactive `Array.filter`
*
* @see https://mpxuse.cn/useArrayFilter
* @param {Array} list - the array was called upon.
* @param fn - a function that is called for every element of the given `list`. Each time `fn` executes, the returned value is added to the new array.
*
* @returns {Array} a shallow copy of a portion of the given array, filtered down to just the elements from the given array that pass the test implemented by the provided function. If no elements pass the test, an empty array will be returned.
*/
export declare function useArrayFilter<T>(
list: MaybeComputedRef<MaybeComputedRef<T>[]>,
fn: (element: T, index: number, array: T[]) => boolean
): ComputedRef<T[]>
源码
贡献者
pagnkelly