Variable: mapAsync()
const
mapAsync: {<From
,To
>(fn
): (asyncIterable
) =>AsyncIterable
<To
>; <From
,To
>(fn
,asyncIterable
):AsyncIterable
<To
>; <From
,To
>(fn
): (asyncIterable
) =>AsyncIterable
<To
>; <From
,To
>(fn
,asyncIterable
):AsyncIterable
<To
>; }
Defined in: transforms.d.ts:71
Returns an async iterable containing the values of asyncIterable
transformed by fn
in iteration order.
Like Array.prototype.map
, but for async iterables.
Call Signature
<
From
,To
>(fn
): (asyncIterable
) =>AsyncIterable
<To
>
Type Parameters
From
From
To
To
extends [] | unknown
[]
Parameters
fn
(value
) => MaybePromiseLike
<To
>
Returns
(
asyncIterable
):AsyncIterable
<To
>
Parameters
asyncIterable
AsyncIterable
<From
>
Returns
AsyncIterable
<To
>
Call Signature
<
From
,To
>(fn
,asyncIterable
):AsyncIterable
<To
>
Type Parameters
From
From
To
To
extends [] | unknown
[]
Parameters
fn
(value
) => MaybePromiseLike
<To
>
asyncIterable
AsyncIterable
<From
>
Returns
AsyncIterable
<To
>
Call Signature
<
From
,To
>(fn
): (asyncIterable
) =>AsyncIterable
<To
>
Type Parameters
From
From
To
To
Parameters
fn
(value
) => MaybePromiseLike
<To
>
Returns
(
asyncIterable
):AsyncIterable
<To
>
Parameters
asyncIterable
AsyncIterable
<From
>
Returns
AsyncIterable
<To
>
Call Signature
<
From
,To
>(fn
,asyncIterable
):AsyncIterable
<To
>
Type Parameters
From
From
To
To
Parameters
fn
(value
) => MaybePromiseLike
<To
>
asyncIterable
AsyncIterable
<From
>
Returns
AsyncIterable
<To
>
Example
import { asAsync, mapAsync, pipe, reduceAsync, toArray } from 'lfi'
const API_URL = `https://api.dictionaryapi.dev/api/v2/entries/en`
console.log(
await pipe(
asAsync([`sloth`, `lazy`, `sleep`]),
mapAsync(async word => {
const response = await fetch(`${API_URL}/${word}`)
return (await response.json())[0].phonetic
}),
reduceAsync(toArray()),
),
)
//=> [ '/slɑθ/', '/ˈleɪzi/', '/sliːp/' ]
Since
v0.0.1