@angular/fire/esm2015/compat/database/list/state-changes.js

The official Angular library for Firebase.

import { fromRef } from '../observable/fromRef';
import { validateEventsArray } from './utils';
import { merge } from 'rxjs';
export function stateChanges(query, events, scheduler) {
    events = validateEventsArray(events);
    const childEvent$ = events.map(event => fromRef(query, event, 'on', scheduler));
    return merge(...childEvent$);
}
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