!@thi.ng/compose

!npm downloads

> [!NOTE]
> This is one of 214 standalone projects, maintained as part
> of the @thi.ng/umbrella monorepo
> and anti-framework.
>
> 🚀 Please help me to work full-time on these projects by sponsoring me on
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- About
- Composition helpers
- Async functions
- Status
- Installation
- Dependencies
- Usage examples
- API
- Authors
- License

About

Optimized functional composition helpers.

Composition helpers

- comp()
- compLeft()
- complement()
- constantly()
- juxt()
- partial()
- threadFirst()
- threadLast()
- trampoline()

$3

- compAsync()
- delayed()
- juxtAsync()
- promisify()
- threadFirstAsync()
- threadLastAsync()
- trampolineAsync()

Status

STABLE - used in production

Search or submit any issues for this package

Installation

``bash
yarn add @thi.ng/compose
`

ESM import:

`ts
import * as comp from "@thi.ng/compose";
`

Browser ESM import:

`html

`

JSDelivr documentation

For Node.js REPL:

`js
const comp = await import("@thi.ng/compose");
`

Package sizes (brotli'd, pre-treeshake): ESM: 813 bytes

Dependencies

- @thi.ng/api
- @thi.ng/errors

Note: @thi.ng/api is in _most_ cases a type-only import (not used at runtime)

Usage examples

Two projects in this repo's
/examples
directory are using this package:

| Screenshot | Description | Live demo | Source |
|:--------------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------------|:---------------------------------------------------------|:--------------------------------------------------------------------------------------|
| | Animated, iterative polygon subdivisions & visualization | Demo | Source |
| | Minimal rdom-canvas animation | Demo | Source |

API

Generated API docs

Authors

- Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

`bibtex
@misc{thing-compose,
title = "@thi.ng/compose",
author = "Karsten Schmidt",
note = "https://thi.ng/compose",
year = 2016
}
``

License

© 2016 - 2026 Karsten Schmidt // Apache License 2.0