watchPausable
Pausable watch
TIP
Pausable Watcher has been added to Vue since 3.5, use const { stop, pause, resume } = watch(watchSource, callback) instead on supported versions.
Demo
Type something below to trigger the watch
Log
Usage
Use as normal the watch, but return extra pause() and resume() functions to control.
ts
import { watchPausable } from '@vueuse/core'
import { nextTick, shallowRef } from 'vue'
const source = shallowRef('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!Type Declarations
Show Type Declarations
ts
export interface WatchPausableReturn extends Pausable {
stop: WatchStopHandle
}
export type WatchPausableOptions<Immediate> =
WatchWithFilterOptions<Immediate> & PausableFilterOptions
export declare function watchPausable<
T extends Readonly<WatchSource<unknown>[]>,
Immediate extends Readonly<boolean> = false,
>(
sources: [...T],
cb: WatchCallback<MapSources<T>, MapOldSources<T, Immediate>>,
options?: WatchPausableOptions<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?: WatchPausableOptions<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?: WatchPausableOptions<Immediate>,
): WatchPausableReturn
export { watchPausable as pausableWatch }Source
Contributors
Anthony Fu
Anthony Fu
Howard Guo
IlyaL
Robin
sun0day
vaakian X
lvjiaxuan