@thi.ng/compose

[!NOTE] This is one of 210 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 GitHub. Thank you! ❤️

• 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()

Async functions

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

Status

STABLE - used in production

Search or submit any issues for this package

Installation

yarn add @thi.ng/compose

ESM import:

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

Browser ESM import:

<script type="module" src="https://esm.run/@thi.ng/compose"></script>

JSDelivr documentation

For Node.js REPL:

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

Package sizes (brotli'd, pre-treeshake): ESM: 815 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:

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

License

© 2016 - 2025 Karsten Schmidt // Apache License 2.0