!@thi.ng/dgraph

!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
> GitHub. Thank you! ❤️

- About
- Features
- Status
- Support packages
- Related packages
- Installation
- Dependencies
- Usage examples
- API
- Authors
- License

About

Type-agnostic directed acyclic graph (DAG), using
@thi.ng/associative
maps & sets as backend.

Implementation based on Stuart Sierra's Clojure version.

$3

- cycle detection
- accessors for direct & transitive dependencies / dependents
- topological sorting
- iterable (in topo order)

Status

STABLE - used in production

Search or submit any issues for this package

Support packages

- @thi.ng/dgraph-dot - Customizable Graphviz DOT serialization for @thi.ng/dgraph

Related packages

- @thi.ng/adjacency - Sparse & bitwise adjacency matrices, lists and selected traversal algorithms for directed & undirected graphs
- @thi.ng/dot - Graphviz document abstraction & serialization to DOT format
- @thi.ng/system - Minimal and explicit dependency-injection & lifecycle container for stateful app components

Installation

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

ESM import:

`ts
import * as dgr from "@thi.ng/dgraph";
`

Browser ESM import:

`html

`

JSDelivr documentation

For Node.js REPL:

`js
const dgr = await import("@thi.ng/dgraph");
`

Package sizes (brotli'd, pre-treeshake): ESM: 866 bytes

Dependencies

- @thi.ng/api
- @thi.ng/associative
- @thi.ng/equiv
- @thi.ng/errors
- @thi.ng/transducers

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

Usage examples

One project in this repo's
/examples
directory is using this package:

| Screenshot | Description | Live demo | Source |
|:---------------------------------------------------------------------------------------------------------------------|:-----------------------------------------|:----------|:---------------------------------------------------------------------------------|
| | CLI util to visualize umbrella pkg stats | | Source |

API

Generated API docs

`ts
import { defDGraph } from "@thi.ng/dgraph";

g = defDGraph();

// add dependencies (order: a -> b)
g.addDependency([1, 2], [10, 20]);
g.addDependency([3, 4], [30, 40]);
g.addDependency([1, 2], [3, 4]);

// add isolated nodes
g.addNode([100, 200]);

g.sort();
// [[30, 40], [3, 4], [10, 20], [100, 200], [1, 2]]
`

Authors

- Karsten Schmidt

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

`bibtex
@misc{thing-dgraph,
title = "@thi.ng/dgraph",
author = "Karsten Schmidt",
note = "https://thi.ng/dgraph",
year = 2015
}
``

License

© 2015 - 2026 Karsten Schmidt // Apache License 2.0