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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / rxjs / src / internal / operators / reduce.ts

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/rxjs/src/internal/operators/reduce.ts b/.config/coc/extensions/node_modules/coc-prettier/node_modules/rxjs/src/internal/operators/reduce.ts
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--- a/.config/coc/extensions/node_modules/coc-prettier/node_modules/rxjs/src/internal/operators/reduce.ts
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-import { Observable } from '../Observable';
-import { scan } from './scan';
-import { takeLast } from './takeLast';
-import { defaultIfEmpty } from './defaultIfEmpty';
-import { OperatorFunction, MonoTypeOperatorFunction } from '../types';
-import { pipe } from '../util/pipe';
-
-/* tslint:disable:max-line-length */
-export function reduce<T, R>(accumulator: (acc: R, value: T, index: number) => R, seed: R): OperatorFunction<T, R>;
-export function reduce<T>(accumulator: (acc: T, value: T, index: number) => T, seed?: T): MonoTypeOperatorFunction<T>;
-export function reduce<T, R>(accumulator: (acc: R, value: T, index: number) => R): OperatorFunction<T, R>;
-/* tslint:enable:max-line-length */
-
-/**
- * Applies an accumulator function over the source Observable, and returns the
- * accumulated result when the source completes, given an optional seed value.
- *
- * <span class="informal">Combines together all values emitted on the source,
- * using an accumulator function that knows how to join a new source value into
- * the accumulation from the past.</span>
- *
- * ![](reduce.png)
- *
- * Like
- * [Array.prototype.reduce()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce),
- * `reduce` applies an `accumulator` function against an accumulation and each
- * value of the source Observable (from the past) to reduce it to a single
- * value, emitted on the output Observable. Note that `reduce` will only emit
- * one value, only when the source Observable completes. It is equivalent to
- * applying operator {@link scan} followed by operator {@link last}.
- *
- * Returns an Observable that applies a specified `accumulator` function to each
- * item emitted by the source Observable. If a `seed` value is specified, then
- * that value will be used as the initial value for the accumulator. If no seed
- * value is specified, the first item of the source is used as the seed.
- *
- * ## Example
- * Count the number of click events that happened in 5 seconds
- * ```ts
- * import { fromEvent, interval } from 'rxjs';
- * import { reduce, takeUntil, mapTo } from 'rxjs/operators';
- *
- * const clicksInFiveSeconds = fromEvent(document, 'click').pipe(
- *   takeUntil(interval(5000)),
- * );
- * const ones = clicksInFiveSeconds.pipe(mapTo(1));
- * const seed = 0;
- * const count = ones.pipe(reduce((acc, one) => acc + one, seed));
- * count.subscribe(x => console.log(x));
- * ```
- *
- * @see {@link count}
- * @see {@link expand}
- * @see {@link mergeScan}
- * @see {@link scan}
- *
- * @param {function(acc: R, value: T, index: number): R} accumulator The accumulator function
- * called on each source value.
- * @param {R} [seed] The initial accumulation value.
- * @return {Observable<R>} An Observable that emits a single value that is the
- * result of accumulating the values emitted by the source Observable.
- * @method reduce
- * @owner Observable
- */
-export function reduce<T, R>(accumulator: (acc: T | R, value: T, index?: number) => T | R, seed?: T | R): OperatorFunction<T, T | R> {
-  // providing a seed of `undefined` *should* be valid and trigger
-  // hasSeed! so don't use `seed !== undefined` checks!
-  // For this reason, we have to check it here at the original call site
-  // otherwise inside Operator/Subscriber we won't know if `undefined`
-  // means they didn't provide anything or if they literally provided `undefined`
-  if (arguments.length >= 2) {
-    return function reduceOperatorFunctionWithSeed(source: Observable<T>): Observable<T | R> {
-      return pipe(scan(accumulator, seed), takeLast(1), defaultIfEmpty(seed))(source);
-    };
-  }
-  return function reduceOperatorFunction(source: Observable<T>): Observable<T | R> {
-    return pipe(
-      scan<T, T | R>((acc, value, index) => accumulator(acc, value, index + 1)),
-      takeLast(1),
-    )(source);
-  };
-}