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replace mergeMap with switchMap, fixes #27 #60

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replace mergeMap with switchMap, fixes #27 #60

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28 changes: 14 additions & 14 deletions docs/modules/Observable.ts.md
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Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,10 @@ Added in v0.6.0

<h2 class="text-delta">Table of contents</h2>

- [Alternative](#alternative)
- [zero](#zero)
- [Alt](#alt)
- [alt](#alt)
- [Alternative](#alternative)
- [zero](#zero)
- [Applicative](#applicative)
- [of](#of)
- [Apply](#apply)
Expand Down Expand Up @@ -43,7 +43,7 @@ Added in v0.6.0
- [fromTask](#fromtask)
- [instances](#instances)
- [Alt](#alt-1)
- [Alternative](#alternative)
- [Alternative](#alternative-1)
- [Applicative](#applicative-1)
- [Apply](#apply-1)
- [Compactable](#compactable-1)
Expand All @@ -65,32 +65,32 @@ Added in v0.6.0

---

# Alternative
# Alt

## zero
## alt

Identifies an associative operation on a type constructor. It is similar to `Semigroup`, except that it applies to
types of kind `* -> *`.

**Signature**

```ts
export declare const zero: <A>() => Observable<A>
export declare const alt: <A>(that: () => Observable<A>) => (fa: Observable<A>) => Observable<A>
```

Added in v0.6.12

# Alt
Added in v0.6.0

## alt
# Alternative

Identifies an associative operation on a type constructor. It is similar to `Semigroup`, except that it applies to
types of kind `* -> *`.
## zero

**Signature**

```ts
export declare const alt: <A>(that: () => Observable<A>) => (fa: Observable<A>) => Observable<A>
export declare const zero: <A>() => Observable<A>
```

Added in v0.6.0
Added in v0.6.12

# Applicative

Expand Down
6 changes: 3 additions & 3 deletions src/Observable.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ import * as O from 'fp-ts/lib/Option'
import { pipe } from 'fp-ts/lib/pipeable'
import { Task } from 'fp-ts/lib/Task'
import { combineLatest, defer, EMPTY, merge, Observable, of as rxOf } from 'rxjs'
import { map as rxMap, mergeMap } from 'rxjs/operators'
import { map as rxMap, switchMap } from 'rxjs/operators'
import { MonadObservable1 } from './MonadObservable'

// -------------------------------------------------------------------------------------
Expand Down Expand Up @@ -107,7 +107,7 @@ export const of: Applicative1<URI>['of'] = rxOf
* @since 0.6.0
*/
export const chain: <A, B>(f: (a: A) => Observable<B>) => (ma: Observable<A>) => Observable<B> = f => ma =>
ma.pipe(mergeMap(f))
ma.pipe(switchMap(f))

/**
* Derivable from `Monad`.
Expand Down Expand Up @@ -152,7 +152,7 @@ export const alt: <A>(that: () => Observable<A>) => (fa: Observable<A>) => Obser
*/
export const filterMap = <A, B>(f: (a: A) => O.Option<B>) => (fa: Observable<A>): Observable<B> =>
fa.pipe(
mergeMap(a =>
switchMap(a =>
pipe(
f(a),
// tslint:disable-next-line: deprecation
Expand Down