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Diffstat (limited to 'node_modules/rxjs/src/internal/operators/expand.ts')
| -rw-r--r-- | node_modules/rxjs/src/internal/operators/expand.ts | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/node_modules/rxjs/src/internal/operators/expand.ts b/node_modules/rxjs/src/internal/operators/expand.ts deleted file mode 100644 index 481a373..0000000 --- a/node_modules/rxjs/src/internal/operators/expand.ts +++ /dev/null @@ -1,95 +0,0 @@ -import { OperatorFunction, ObservableInput, ObservedValueOf, SchedulerLike } from '../types'; -import { operate } from '../util/lift'; -import { mergeInternals } from './mergeInternals'; - -/* tslint:disable:max-line-length */ -export function expand<T, O extends ObservableInput<unknown>>( - project: (value: T, index: number) => O, - concurrent?: number, - scheduler?: SchedulerLike -): OperatorFunction<T, ObservedValueOf<O>>; -/** - * @deprecated The `scheduler` parameter will be removed in v8. If you need to schedule the inner subscription, - * use `subscribeOn` within the projection function: `expand((value) => fn(value).pipe(subscribeOn(scheduler)))`. - * Details: Details: https://rxjs.dev/deprecations/scheduler-argument - */ -export function expand<T, O extends ObservableInput<unknown>>( - project: (value: T, index: number) => O, - concurrent: number | undefined, - scheduler: SchedulerLike -): OperatorFunction<T, ObservedValueOf<O>>; -/* tslint:enable:max-line-length */ - -/** - * Recursively projects each source value to an Observable which is merged in - * the output Observable. - * - * <span class="informal">It's similar to {@link mergeMap}, but applies the - * projection function to every source value as well as every output value. - * It's recursive.</span> - * - *  - * - * Returns an Observable that emits items based on applying a function that you - * supply to each item emitted by the source Observable, where that function - * returns an Observable, and then merging those resulting Observables and - * emitting the results of this merger. *Expand* will re-emit on the output - * Observable every source value. Then, each output value is given to the - * `project` function which returns an inner Observable to be merged on the - * output Observable. Those output values resulting from the projection are also - * given to the `project` function to produce new output values. This is how - * *expand* behaves recursively. - * - * ## Example - * - * Start emitting the powers of two on every click, at most 10 of them - * - * ```ts - * import { fromEvent, map, expand, of, delay, take } from 'rxjs'; - * - * const clicks = fromEvent(document, 'click'); - * const powersOfTwo = clicks.pipe( - * map(() => 1), - * expand(x => of(2 * x).pipe(delay(1000))), - * take(10) - * ); - * powersOfTwo.subscribe(x => console.log(x)); - * ``` - * - * @see {@link mergeMap} - * @see {@link mergeScan} - * - * @param project A function that, when applied to an item emitted by the source - * or the output Observable, returns an Observable. - * @param concurrent Maximum number of input Observables being subscribed to - * concurrently. - * @param scheduler The {@link SchedulerLike} to use for subscribing to - * each projected inner Observable. - * @return A function that returns an Observable that emits the source values - * and also result of applying the projection function to each value emitted on - * the output Observable and merging the results of the Observables obtained - * from this transformation. - */ -export function expand<T, O extends ObservableInput<unknown>>( - project: (value: T, index: number) => O, - concurrent = Infinity, - scheduler?: SchedulerLike -): OperatorFunction<T, ObservedValueOf<O>> { - concurrent = (concurrent || 0) < 1 ? Infinity : concurrent; - return operate((source, subscriber) => - mergeInternals( - // General merge params - source, - subscriber, - project, - concurrent, - - // onBeforeNext - undefined, - - // Expand-specific - true, // Use expand path - scheduler // Inner subscription scheduler - ) - ); -} |
