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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | 7x 7x 7x 7x 5x 5x 5x 5x 5x 5x 5x 5x 5x | import { scope } from '../../constants'
import { forceQueueWatchers } from '../../helpers'
import { unwatch } from '../unwatch'
/**
* You can create event function with createEvent
* ```typescript
* import { State, createEvent } from 'watch-state'
*
* const count = new State(0)
* const increase = createEvent(() => {
* console.log(count.value++)
* })
*
* new Watch(increase)
* ```
* */
export function createEvent<F extends Function> (fn: F): F {
return function () {
const result = unwatch(() => {
scope.eventDeep++
const result = fn.apply(this, arguments)
scope.eventDeep--
return result
})
if (!scope.eventDeep) {
forceQueueWatchers()
}
return result
} as unknown as F
}
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