Skip to main content

Function: joinConcur()

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

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

WARNING: The iteration order of concur iterables is not deterministic, so the values will be concatenated in an arbitrary order.

Example​

import { asConcur, joinConcur, mapConcur, pipe } from 'lfi'

const API_URL = `https://api.dictionaryapi.dev/api/v2/entries/en`

console.log(
  await pipe(
    asConcur([`sloth`, `lazy`, `sleep`]),
    mapConcur(async word => {
      const response = await fetch(`${API_URL}/${word}`)
      return (await response.json())[0].phonetic
    }),
    joinConcur(`, `),
  ),
)
// NOTE: This order may change between runs
//=> /slɑθ/, /ˈleɪzi/, /sliːp/
Playground

Since​

v0.0.2

Call Signature​

joinConcur(separator): (concurIterable) => Promise<string>

Parameters​

separator​

string

Returns​

Function

Parameters​

concurIterable​

ConcurIterable<unknown>

Returns​

Promise<string>

Defined in​

collections.d.ts:524

Call Signature​

joinConcur(separator, concurIterable): Promise<string>

Parameters​

separator​

string

concurIterable​

ConcurIterable<unknown>

Returns​

Promise<string>

Defined in​

collections.d.ts:527