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Well-tested utility functions dealing with async iterables

This package works with Cloudflare Workers, Node.js, Deno, Bun, Browsers
This package works with Cloudflare Workers
This package works with Node.js
This package works with Deno
This package works with Bun
This package works with Browsers
JSR Score
88%
Published
2 years ago (0.6.0)
function cycle
cycle<T>(source: Iterable<T> | AsyncIterable<T>): AsyncIterableIterator<T>

Makes an async iterator that yields elements from the source and saving a copy of each. When the source is exhausted, yields saved copies indefinitely.

Note that it may require significant memory to save the copies depending on the length of the source.

import { cycle } from "./infinite.ts";

async function* gen() { yield 3; yield 6; yield 9; }
const iterable = cycle(gen());
for await (const value of iterable) console.log(value);

The above example will print the following and keep going forever:

3
6
9
3
6
9
(...)

Type Parameters

The type of the elements in the source and the returned async iterable.

Parameters

source: Iterable<T> | AsyncIterable<T>

An async iterable to repeat.

Return Type

AsyncIterableIterator<T>

An async iterable that repeats the source indefinitely.

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Add Package

deno add jsr:@hongminhee/aitertools

Import symbol

import { cycle } from "@hongminhee/aitertools";
or

Import directly with a jsr specifier

import { cycle } from "jsr:@hongminhee/aitertools";

Add Package

pnpm i jsr:@hongminhee/aitertools
or (using pnpm 10.8 or older)
pnpm dlx jsr add @hongminhee/aitertools

Import symbol

import { cycle } from "@hongminhee/aitertools";

Add Package

yarn add jsr:@hongminhee/aitertools
or (using Yarn 4.8 or older)
yarn dlx jsr add @hongminhee/aitertools

Import symbol

import { cycle } from "@hongminhee/aitertools";

Add Package

vlt install jsr:@hongminhee/aitertools

Import symbol

import { cycle } from "@hongminhee/aitertools";

Add Package

npx jsr add @hongminhee/aitertools

Import symbol

import { cycle } from "@hongminhee/aitertools";

Add Package

bunx jsr add @hongminhee/aitertools

Import symbol

import { cycle } from "@hongminhee/aitertools";