# it-batch > Takes an async iterator that emits things and emits them as fixed size batches Latest version **3.0.11** (published 2026-04-10) · Apache-2.0 OR MIT license · 0 weekly downloads ## Install ```sh npm install it-batch pnpm add it-batch yarn add it-batch bun add it-batch ``` ## Health **Score 70/100 (B)** — status: active. Positive: has types; esm support; no vulnerabilities; has provenance; high maintenance score; high quality score. Warnings: low downloads. ## Facts | | | |---|---| | Version | 3.0.11 | | Published | 2026-04-10 | | First published | 2019-11-25 | | Weekly downloads | 0 | | License | Apache-2.0 OR MIT | | TypeScript types | bundled | | Module format | ESM | | Dependencies | 0 | | Unpacked size | 18.6 KB | | Known vulnerabilities | 0 | | Install scripts | no | | Provenance | attested (GitHub Actions) | | GitHub stars | 283 | | Author | Alex Potsides | | Maintainers | achingbrain | ## Links - npm: https://www.npmjs.com/package/it-batch - Repository: https://github.com/achingbrain/it - Homepage: https://github.com/achingbrain/it/tree/main/packages/it-batch#readme - Issues: https://github.com/achingbrain/it/issues - npm.io page: https://npm.io/package/it-batch ## Recent versions - 3.0.11 (latest) — 2026-04-10 - 3.0.10 — 2026-04-10 - 3.0.9 — 2025-06-01 - 3.0.8 — 2025-05-13 - 3.0.7 — 2025-03-06 - 3.0.6 — 2024-04-25 - 3.0.5 — 2024-04-24 - 3.0.4 — 2023-11-15 - 3.0.3 — 2023-08-16 - 3.0.2 — 2023-05-09 - 3.0.1 — 2023-03-31 - 3.0.0 — 2023-03-30 - 2.0.1 — 2023-03-02 - 2.0.0 — 2022-10-17 - 1.0.9 — 2021-10-10 - … 10 more at https://npm.io/package/it-batch/versions ## README # it [![codecov](https://img.shields.io/codecov/c/github/achingbrain/it.svg?style=flat-square)](https://codecov.io/gh/achingbrain/it) [![CI](https://img.shields.io/github/actions/workflow/status/achingbrain/it/js-test-and-release.yml?branch=main\&style=flat-square)](https://github.com/achingbrain/it/actions/workflows/js-test-and-release.yml?query=branch%3Amain) > A collection of utilities for making working with iterables more bearable # Packages - [`packages/blob-to-it`](https://github.com/achingbrain/it/tree/main/packages/blob-to-it) Turns a blob into an async iterator - [`packages/browser-readablestream-to-it`](https://github.com/achingbrain/it/tree/main/packages/browser-readablestream-to-it) Turns a browser readble stream into an async iterator - [`packages/it-all`](https://github.com/achingbrain/it/tree/main/packages/it-all) Collects all values from an (async) iterable and returns them as an array - [`packages/it-batch`](https://github.com/achingbrain/it/tree/main/packages/it-batch) Takes an async iterator that emits things and emits them as fixed size batches - [`packages/it-batched-bytes`](https://github.com/achingbrain/it/tree/main/packages/it-batched-bytes) Takes an async iterator that emits byte arrays and emits them as fixed size batches - [`packages/it-buffer-stream`](https://github.com/achingbrain/it/tree/main/packages/it-buffer-stream) An async iterator that emits buffers containing bytes up to a certain length - [`packages/it-byte-stream`](https://github.com/achingbrain/it/tree/main/packages/it-byte-stream) Read and write arbitrary bytes over a duplex stream - [`packages/it-cbor-stream`](https://github.com/achingbrain/it/tree/main/packages/it-cbor-stream) Read and write CBOR messages over a duplex stream - [`packages/it-drain`](https://github.com/achingbrain/it/tree/main/packages/it-drain) Empties an async iterator - [`packages/it-filter`](https://github.com/achingbrain/it/tree/main/packages/it-filter) Filters the passed iterable by using the filter function - [`packages/it-first`](https://github.com/achingbrain/it/tree/main/packages/it-first) Returns the first result from an async iterator - [`packages/it-flat-batch`](https://github.com/achingbrain/it/tree/main/packages/it-flat-batch) Takes an async iterator that emits variable length arrays and emits them as fixed size batches - [`packages/it-foreach`](https://github.com/achingbrain/it/tree/main/packages/it-foreach) Invokes the passed function for each item in an iterable - [`packages/it-glob`](https://github.com/achingbrain/it/tree/main/packages/it-glob) Async iterable filename pattern matcher - [`packages/it-last`](https://github.com/achingbrain/it/tree/main/packages/it-last) Returns the last result from an async iterator - [`packages/it-length`](https://github.com/achingbrain/it/tree/main/packages/it-length) Counts the number of items in an async iterable - [`packages/it-length-prefixed-stream`](https://github.com/achingbrain/it/tree/main/packages/it-length-prefixed-stream) Read and write length-prefixed byte arrays over a duplex stream - [`packages/it-limit-bytes`](https://github.com/achingbrain/it/tree/main/packages/it-limit-bytes) Limit the number of bytes that are yielded from an (async) iterable - [`packages/it-map`](https://github.com/achingbrain/it/tree/main/packages/it-map) Maps the values yielded by an async iterator - [`packages/it-merge`](https://github.com/achingbrain/it/tree/main/packages/it-merge) Treat one or more iterables as a single iterable - [`packages/it-multipart`](https://github.com/achingbrain/it/tree/main/packages/it-multipart) Async iterable http multipart message parser - [`packages/it-ndjson`](https://github.com/achingbrain/it/tree/main/packages/it-ndjson) Parse iterators as ndjson and transform iterators to ndjson - [`packages/it-ndjson-stream`](https://github.com/achingbrain/it/tree/main/packages/it-ndjson-stream) Read and write ndjson messages over a duplex stream - [`packages/it-parallel`](https://github.com/achingbrain/it/tree/main/packages/it-parallel) Process incoming async(iterable) functions in parallel - [`packages/it-parallel-batch`](https://github.com/achingbrain/it/tree/main/packages/it-parallel-batch) Process (async)iterable values as functions with concurrency control - [`packages/it-peekable`](https://github.com/achingbrain/it/tree/main/packages/it-peekable) Allows peeking/pushing an iterable - [`packages/it-protobuf-stream`](https://github.com/achingbrain/it/tree/main/packages/it-protobuf-stream) Read and write protobuf messages over a duplex stream - [`packages/it-queue`](https://github.com/achingbrain/it/tree/main/packages/it-queue) A queue implementation that can be iterated over - [`packages/it-queueless-pushable`](https://github.com/achingbrain/it/tree/main/packages/it-queueless-pushable) A pushable queue that waits until a value is consumed before accepting another - [`packages/it-reduce`](https://github.com/achingbrain/it/tree/main/packages/it-reduce) Reduces the values yielded from an async iterator - [`packages/it-rpc`](https://github.com/achingbrain/it/tree/main/packages/it-rpc) Schema-free RPC over async iterables - [`packages/it-skip`](https://github.com/achingbrain/it/tree/main/packages/it-skip) Skip items from an iterable - [`packages/it-sort`](https://github.com/achingbrain/it/tree/main/packages/it-sort) Collects all values from an async iterator, sorts them using the passed function and yields them - [`packages/it-split`](https://github.com/achingbrain/it/tree/main/packages/it-split) Splits Uint8Arrays emitted by an (async) iterable by a delimiter - [`packages/it-take`](https://github.com/achingbrain/it/tree/main/packages/it-take) Stop iteration after n items have been received - [`packages/it-to-browser-readablestream`](https://github.com/achingbrain/it/tree/main/packages/it-to-browser-readablestream) Takes an async iterator and turns it into a browser readable stream - [`packages/it-to-buffer`](https://github.com/achingbrain/it/tree/main/packages/it-to-buffer) Takes an async iterator that yields buffers and concatenates them all together # API Docs - # License Licensed under either of - Apache 2.0, ([LICENSE-APACHE](https://github.com/achingbrain/it/blob/main/LICENSE-APACHE) / ) - MIT ([LICENSE-MIT](https://github.com/achingbrain/it/blob/main/LICENSE-MIT) / ) # Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. --- _Source: https://npm.io/package/it-batch · Machine-readable twin of the npm.io package page. 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