主题
watchPausable
可暂停监视
¥Pausable watch
示例
Type something below to trigger the watch
Log
用法
¥Usage
正常使用 watch
,但返回额外的 pause()
和 resume()
函数进行控制。
¥Use as normal the watch
, but return extra pause()
and resume()
functions to control.
ts
import { watchPausable } from '@vueuse/core'
import { nextTick, ref } from 'vue'
const source = ref('foo')
const { stop, pause, resume } = watchPausable(
source,
v => console.log(`Changed to ${v}!`),
)
source.value = 'bar'
await nextTick() // Changed to bar!
pause()
source.value = 'foobar'
await nextTick() // (nothing happend)
resume()
source.value = 'hello'
await nextTick() // Changed to hello!
类型声明
typescript
export interface WatchPausableReturn extends Pausable {
stop: WatchStopHandle
}
export declare function watchPausable<
T extends Readonly<WatchSource<unknown>[]>,
Immediate extends Readonly<boolean> = false,
>(
sources: [...T],
cb: WatchCallback<MapSources<T>, MapOldSources<T, Immediate>>,
options?: WatchWithFilterOptions<Immediate>,
): WatchPausableReturn
export declare function watchPausable<
T,
Immediate extends Readonly<boolean> = false,
>(
source: WatchSource<T>,
cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
options?: WatchWithFilterOptions<Immediate>,
): WatchPausableReturn
export declare function watchPausable<
T extends object,
Immediate extends Readonly<boolean> = false,
>(
source: T,
cb: WatchCallback<T, Immediate extends true ? T | undefined : T>,
options?: WatchWithFilterOptions<Immediate>,
): WatchPausableReturn
export { watchPausable as pausableWatch }