Skip to main content

Function: joinAsync()

Returns a promise that resolves to the string concatenation of the values of asyncIterable, separated by separator.

Like Array.prototype.join, but for async iterables, except it does not treat null, undefined, or [] specially.

Example​

import { asAsync, joinAsync, mapAsync, pipe } 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
    }),
    joinAsync(`, `),
  ),
)
//=> /slɑθ/, /ˈleɪzi/, /sliːp/
Playground

Since​

v0.0.1

Call Signature​

joinAsync(separator): (asyncIterable) => Promise<string>

Parameters​

separator​

string

Returns​

Function

Parameters​

asyncIterable​

AsyncIterable<unknown, any, any>

Returns​

Promise<string>

Defined in​

collections.d.ts:484

Call Signature​

joinAsync(separator, asyncIterable): Promise<string>

Parameters​

separator​

string

asyncIterable​

AsyncIterable<unknown, any, any>

Returns​

Promise<string>

Defined in​

collections.d.ts:487