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Function: getConcur()

getConcur<Value>(concurIterable): Promise<Value>

Returns a promise that resolves to the only value in concurIterable if it contains exactly one value. Otherwise, returns a promise that rejects.

Type Parameters​

• Value

Parameters​

concurIterable​

ConcurIterable<Value>

Returns​

Promise<Value>

Example​

import { asConcur, findConcur, getConcur, pipe } from 'lfi'

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

const findWordWithPartOfSpeech = partOfSpeech =>
  pipe(
    asConcur([`sloth`, `lazy`, `sleep`]),
    findConcur(async word => {
      const response = await fetch(`${API_URL}/${word}`)
      const [{ meanings }] = await response.json()
      return meanings.some(meaning => meaning.partOfSpeech === partOfSpeech)
    }),
    getConcur,
  )

console.log(await findWordWithPartOfSpeech(`noun`))
// NOTE: This word may change between runs
//=> sloth
console.log(await findWordWithPartOfSpeech(`verb`))
// NOTE: This word may change between runs
//=> sloth
console.log(await findWordWithPartOfSpeech(`adjective`))
//=> lazy
try {
  console.log(await findWordWithPartOfSpeech(`adverb`))
} catch {
  console.log(`Oh no! It was empty...`)
}
//=> Oh no! It was empty...
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Since​

v0.0.2

Defined in​

optionals.d.ts:274