watchDebounced

防抖监听

用法

类似于 watch，但提供了额外的 debounce 和 maxWait 选项，这些选项将应用于回调函数。

import { watchDebounced } from '@vueuse/core'

watchDebounced(
  source,
  () => { console.log('changed!') },
  { debounce: 500, maxWait: 1000 },
)

它实际上是以下代码的简写：

import { debounceFilter, watchWithFilter } from '@vueuse/core'

watchWithFilter(
  source,
  () => { console.log('changed!') },
  {
    eventFilter: debounceFilter(500, { maxWait: 1000 }),
  },
)

类型声明

export interface WatchDebouncedOptions<Immediate>
  extends WatchOptions<Immediate>,
    DebounceFilterOptions {
  debounce?: MaybeRefOrGetter<number>
}
export declare function watchDebounced<
  T extends Readonly<WatchSource<unknown>[]>,
  Immediate extends Readonly<boolean> = false,
>(
  sources: [...T],
  cb: WatchCallback<MapSources<T>, MapOldSources<T, Immediate>>,
  options?: WatchDebouncedOptions<Immediate>,
): WatchStopHandle
export declare function watchDebounced<
  T,
  Immediate extends Readonly<boolean> = false,
>(
  source: WatchSource<T>,
  cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
  options?: WatchDebouncedOptions<Immediate>,
): WatchStopHandle
export declare function watchDebounced<
  T extends object,
  Immediate extends Readonly<boolean> = false,
>(
  source: T,
  cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
  options?: WatchDebouncedOptions<Immediate>,
): WatchStopHandle
export { watchDebounced as debouncedWatch }

watchAtMost

watchDeep