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1.2 KiB
1.2 KiB
category
| category |
|---|
| @RxJS |
from / fromEvent
Wrappers around RxJS's from() and fromEvent() to allow them to accept refs.
Usage
import { from, fromEvent, toObserver, useSubscription } from '@vueuse/rxjs';
import { interval } from 'rxjs';
import { map, mapTo, takeUntil, withLatestFrom } from 'rxjs/operators';
import { shallowRef, useTemplateRef } from 'vue';
const count = shallowRef(0);
const button = useTemplateRef('buttonRef');
useSubscription(
interval(1000)
.pipe(
mapTo(1),
takeUntil(fromEvent(button, 'click')),
withLatestFrom(
from(count, {
immediate: true,
deep: false,
}),
),
map(([curr, total]) => curr + total),
)
.subscribe(toObserver(count)), // same as ).subscribe(val => (count.value = val))
);
Type Declarations
export declare function from<T>(
value: ObservableInput<T> | Ref<T>,
watchOptions?: WatchOptions,
): Observable<T>;
export declare function fromEvent<T extends HTMLElement | null>(
value: MaybeRef<T>,
event: string,
): Observable<Event>;