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Function: generateAsync()

Returns an infinite async iterable that yields seed for its first value and then yields the awaited result of applying fn to its previously yielded value for every subsequent value.

Example​

import { generateAsync, pipe, reduceAsync, takeAsync, toArray } from 'lfi'

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

console.log(
  await pipe(
    `sleep`,
    generateAsync(async previousWord => {
      const response = await fetch(`${API_URL}/${previousWord}`)
      const [{ meanings }] = await response.json()
      return meanings[0].partOfSpeech
    }),
    takeAsync(4),
    reduceAsync(toArray()),
  ),
)
//=> [ 'sleep', 'verb', 'noun', 'noun' ]
Playground

Since​

v0.0.1

Call Signature​

generateAsync<Value>(fn): (seed) => AsyncIterable<Value, any, any>

Type Parameters​

• Value

Parameters​

fn​

(previousValue) => MaybePromiseLike<Value>

Returns​

Function

Parameters​

seed​

Value

Returns​

AsyncIterable<Value, any, any>

Defined in​

generators.d.ts:260

Call Signature​

generateAsync<Value>(fn, seed): AsyncIterable<Value, any, any>

Type Parameters​

• Value

Parameters​

fn​

(previousValue) => MaybePromiseLike<Value>

seed​

Value

Returns​

AsyncIterable<Value, any, any>

Defined in​

generators.d.ts:263