useCycleList
循环浏览项目列表。
¥Cycle through a list of items.
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用法
¥Usage
ts
import { useCycleList } from '@vueuse/core'
const { state, next, prev, go } = useCycleList([
'Dog',
'Cat',
'Lizard',
'Shark',
'Whale',
'Dolphin',
'Octopus',
'Seal',
])
console.log(state.value) // 'Dog'
prev()
console.log(state.value) // 'Seal'
go(3)
console.log(state.value) // 'Shark'类型声明
ts
export interface UseCycleListOptions<T> {
/**
* The initial value of the state.
* A ref can be provided to reuse.
*/
initialValue?: MaybeRef<T>
/**
* The default index when
*/
fallbackIndex?: number
/**
* Custom function to get the index of the current value.
*/
getIndexOf?: (value: T, list: T[]) => number
}
/**
* Cycle through a list of items
*
* @see https://vueuse.org/useCycleList
*/
export declare function useCycleList<T>(
list: MaybeRefOrGetter<T[]>,
options?: UseCycleListOptions<T>,
): UseCycleListReturn<T>
export interface UseCycleListReturn<T> {
state: ShallowRef<T>
index: WritableComputedRef<number>
next: (n?: number) => T
prev: (n?: number) => T
/**
* Go to a specific index
*/
go: (i: number) => T
}