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useArrayFindIndex

类别
导出体积
138 B
上次更改
2 months ago

响应式 Array.findIndex

用法

与多个 ref 组成的数组一起使用

ts
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

与响应式数组一起使用

ts
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

类型声明

ts
export type 
UseArrayFindIndexReturn
=
ComputedRef
<number>
/** * 响应式 `Array.findIndex` * * @see https://vueuse.org/useArrayFindIndex * @param list - 被调用的数组。 * @param fn - 用于测试每个元素的函数。 * * @returns 数组中第一个通过测试的元素的索引。否则返回 "-1"。 * * @__NO_SIDE_EFFECTS__ */ export declare function
useArrayFindIndex
<
T
>(
list
:
MaybeRefOrGetter
<
MaybeRefOrGetter
<
T
>[]>,
fn
: (
element
:
T
,
index
: number,
array
:
MaybeRefOrGetter
<
T
>[]) => unknown,
):
UseArrayFindIndexReturn

源码

源码文档

贡献者

一纸忘忧
Anthony Fu
Anthony Fu
SerKo
Levi (Nguyễn Lương Huy)
Robin
IlyaL

更新日志

d32f8 - refactor: add @__NO_SIDE_EFFECTS__ annotations to all pure functions (#4907)
c1d6e - feat(shared): ensure return types exists (#4659)
7432f - feat(types): deprecate MaybeRef and MaybeRefOrGetter in favor of Vue's native (#4636)
59f75 - feat(toValue): deprecate toValue from @vueuse/shared in favor of Vue's native
0a9ed - feat!: drop Vue 2 support, optimize bundles and clean up (#4349)