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from / fromEvent

Wrappers around RxJS's from() and fromEvent() to allow them to accept refs. Available in the @vueuse/rxjs add-on.

Usage

Category @RxJS

Export Size 153 B

Package @vueuse/rxjs

Last Changed 7 months ago

Category	@RxJS
Export Size	153 B
Package	`@vueuse/rxjs`
Last Changed	7 months ago

import { ref } from 'vue'
import { from, fromEvent, toObserver, useSubscription } from '@vueuse/rxjs'
import { interval } from 'rxjs'
import { map, mapTo, takeUntil, withLatestFrom } from 'rxjs/operators'

const count = ref(0)
const button = ref<HTMLButtonElement>(null)

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>(
  value: MaybeRef<T>,
  event: string
): Observable<Event>

Source

Source • Docs