Gathering detailed insights and metrics for @thi.ng/porter-duff
Gathering detailed insights and metrics for @thi.ng/porter-duff
⛱ Broadly scoped ecosystem & mono-repository of 209 TypeScript projects (and ~185 examples) for general purpose, functional, data driven development
Installations
npm install @thi.ng/porter-duffDeveloper Guide
BETA
Typescript
No
Module System
ESM
Min. Node Version
>=18
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Languages
7
TypeScript
Zig
Shell
C
PEG.js
JavaScript
Forth
TypeScript (98.34%)
Zig (1.31%)
Shell (0.22%)
C (0.06%)
PEG.js (0.04%)
JavaScript (0.02%)
Forth (0.01%)
Developer
Download Statistics
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Last Day
0
Last Week
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GitHub Statistics
Apache-2.0 License
3,610 Stars
11,917 Commits
149 Forks
48 Watchers
4 Branches
42 Contributors
Updated on Jul 12, 2025
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Maintainers
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Package Meta Information
Latest Version
2.1.108
Package Id
@thi.ng/porter-duff@2.1.108
Unpacked Size
38.44 kB
Size
11.35 kB
File Count
14
Published on
Jul 10, 2025
Total Downloads
Cumulative downloads
Total Downloads
NaN
Dependencies
1
Dev Dependencies
3
- About
- Getting Started
- Examples & Showcase
- Community, contributing, getting help
- Projects
- Latest updates
- Algorithms & data structures
- DSLs
- File / file format / hardware support
- Frontend / UI
- Fundamentals
- Geometry, image & visualization
- Iterator, stream & sequence processing
- Low-level, binary, memory management, interop
- Maths
- Network
- Randomness
- Reactive programming
- WebGL / GPGPU
- Deprecated packages
- Building
- Acknowledgements
- License
- Contributors
About
"A collection of functional programming libraries that can be composed together. Unlike a framework, thi.ng is a suite of instruments and you (the user) must be the composer of. Geared towards versatility, not any specific type of music." — @loganpowell via Twitter
Please visit thi.ng for additional information. You might also find the following tools useful to find & explore projects in this vast ecosystem:
This project is NOT a framework and all packages can be used in isolation.
Not including deprecations, this mono-repository is home to 209 individual TypeScript libraries/packages/tools and ~185 example projects illustrating their usage, currently totalling ~238k SLOC and ~4250 source files... Some of the projects have been in regular development since 2015. The monorepo exists in its current form since January 2018.
Unlike most other large mono-repos, this one is not for a single project, but a broad collection of jointly developed, yet independent libraries, tools and general purpose building blocks for the following non-exhaustive list of topics (see package overview below):
- Functional programming (ES6 iterators/generators, composition, memoization, transducers, multi-methods)
- Reactive programming, stream / transducer based dataflow graphs / pipelines / DOM
- Fiber process tree abstraction for ES6 generators (co-routines / cooperative multitasking)
- Data structures & data transformations for wide range of use cases (maps, sets, heaps, queues, graphs etc.)
- WebAssembly bridge APIs & data structure bindings code generators for multiple target languages (primarily aimed at Zig & C11)
- PEG-style functional parser combinators w/ (optional) custom grammar definition language
- Customizable HTML & Markdown parsers
- 2D/3D geometry generation, shape primitives, math, manipulation, intersections, conversions & visualizations
- Canvas abstractions, pixel buffers & SVG serialization/conversion
- Comprehensive function collection (900+) for nD-vectors and matrices (dense & sparse)
- ECS implementations with optional support for strided memory layouts
- Semi-declarative WebGL 1/2 abstraction layer
- DSL for shader functions defined in TypeScript and cross-compilation to GLSL, JS, VEX etc.
- Value-based equivalence (vs. native object identity) and associative data structures (sets, maps)
- DSP building blocks: oscillators, noise generators, filters, 1D FFT/IFFT, muxers, rate converters
- Immutable data handling, state containers, transacted state updates, Undo-Redo history
- Reactive UI component toolkits (DOM-based, canvas-based, immediate-mode, multiple approaches...)
- Multi-format, multi-channel pixel buffers (int & float based), conversions, dithering, Porter-Duff alpha-blending operators
- Color space/format conversions, matrix based color manipulation, gradient generators, color palettes, dominant color extraction
- Date-time abstraction, relative dates, iterators, formatters, math
- WebWorker workflow abstractions
- Forth-style pointfree DSL for functional composition and DSL development/extension
- S-expression parser & runtime (interpreter) infrastructure for custom DSL creation
- WASM-based SIMD batch-processing of vector data
- Pen-plotter (AxiDraw) toolchain & geometry conversions
- Interpolations, math helpers, automatic differentiation (Dual numbers)
- etc.
Once more, this project is NOT a framework. There's no turn-key, one-size-fits-all approach and instead the overall design philosophy encourages a mix & match philosophy for key aspects of application design (inside & outside the browser). Customization points are provided wherever useful and only expect certain interfaces/type signatures rather than hard-coded concrete implementations. In many cases presets are provided too.
All packages:
- are versioned independently
- have auto-generated online documentation at docs.thi.ng
- built via esbuild and tested via bun.sh
- released via thi.ng/monopub publishing toolchain
- distributed as ESM modules (ES2022 syntax) with export maps, TypeScript typings & change logs
- highly modular with often only a single function / class (incl. closely related functions) per file to help w/ selective imports and tree shaking
- provide re-exports of all their publics for full library imports
- have either none or only
@thi.nginternal runtime dependencies (w/ very few exceptions! All dependencies are listed in each package readme) - declare public interfaces, enums & types in an
api.tsfile - licensed under Apache Software License 2.0
Getting started
A common misconception is to think of this repo as single project. It is not! The sheer number and varied nature & purpose of these packages makes it impossible to provide traditional "Getting started" tutorials — there would have to be dozens of them... To compensate, this repo provides ~180 example projects, detailed package readmes (at the very least for all the larger and/or more important ones), as well as hundreds of small usage examples/snippets in doc strings & readme files.
Documentation
- Generated API docs (overview)
- Single page API docs for all pacakges (work-in-progress)
- Hundreds of usage examples/snippets
If you're unsure about something, please reach out! Any constructive feedback is always highly appreciated!
Project templates
You might find one of the following template repos an useful starting point (only updated sporadically, make sure to update dependencies manually):
- tpl-umbrella-basic: Bare-bones template repo for browser-based projects
- tpl-umbrella-fxhash: Project template repo for generative art projects on the fx(hash) platform
- tpl-umbrella-zig: Minimal browser project template for hybrid TypeScript & Zig (WebAssembly) apps
#HowToThing
Between August-November 2023, #HowToThing was a series of short posts & mini-tutorials on Mastodon, demonstrating a range of different techniques, patterns and use cases from across the thi.ng/umbrella ecosystem. These are not necessarily intro examples, but each one comes with heavily commented code (and often with visual outputs/results).
- 001: FPS counter with moving average
- 002: Sorting an array by potentially CPU-costly sort criteria
- 003: Multiple key states and extracting commands via FSM
- 004: Creating text-based plots to debug & visualize sequential data
- 005: Barnsley fern IFS fractal
- 006: Clustering arbitrary n-dimensional data using K-means
- 007: Converting Google Maps bookmarks to KML
- 008: CSV parsing into structured data & multi-plot SVG dataviz
- 009: 2D canvas drawing &
threadLast()dataflow operator - 010: Basic web app UI/DOM via Zig/WASM and thi.ng/wasm-api
- 011: 2D cellular automata as WebGL2 multi-pass shader pipeline
- 012: Pure CSS image transition/reveal with thi.ng/hiccup-css
- 013: Lisp interpreter using thi.ng/sexpr & thi.ng/defmulti
- 014: A simple browser REPL for a Lispy mini language
- 015: Generative audio synth offline renderer and WAV file export
- 016: Building a reactive Mastodon UI, parsing & transforming API data
- 017: (Re)Constructing the thi.ng logo as 2D signed-distance field
- 018: Topological sorting, creating & visualizing a task dependency graph
- 019: Building a responsive & reactive stacked column layout
- 020: Generating randomized 4-point 2D multicolor gradient maps/images
- 021: Iterative animated convex polygon subdivision & heat map viz
- 022: Quasi-random voronoi lattice generator
- 023: Tag-based Jaccard similarity ranking/filtering using bitfields
- 024: 2.5D hidden line visualization of digital elevation files (DEM)
- 025: Fitting, transforming & plotting 10k data points per frame using SIMD
- 026: Shader meta-programming to generate animated function plots
- 027: Flocking sim with neighborhood queries to visualize proximity
- 028: Randomized, space-filling, nested 2D grid layout generator
- 029: Forth-like DSL & livecoding playground for 2D geometry generation
- 030: Procedural stochastic text generation via custom DSL & parse grammar
Blog posts
- "Of umbrellas, transducers, reactive streams & mushrooms" (ongoing series):
- How to UI in 2018
- The Jacob's Ladder of coding
Videos
The following videos have been migrated from YouTube to their new home at makertube.net (more to come):
- Building a web editor for creating/testing parse grammars
- Building a shader graph editor (WebGL, shader AST transpiler, UI)
- Crash course: TypeScript mapped types in action
Examples & Showcase
There's a steadily growing number (~180) of standalone examples of different complexities (often combining functionality from several packages) in the examples directory.
| Example screenshots | (small selection) | |
|---|---|---|
 |  |  |
 |  |  |
 |  |  |
awesome.thi.ng
Due to other priorities still very much in its infancy & planning stage, but please help to document your own usage of these packages by contributing project information to the awesome.thi.ng repo, which will be used to build a showcase site... Thank you!
Generative art projects
Several generative art projects by Karsten Schmidt on fx(hash) were created exclusively with libraries from this collection.
| De/Frag series | ||
|---|---|---|
 |  |  |
| Quasiflock | C-SCAPE | ASCII-SCAPE |
 |  |  |
| Bubblemania | Danza (unreleased) | S-TRACE (unreleased) |
 |  |  |
Community, contributing, getting help
[!NOTE] My Mastodon account is the best place to learn about ongoing developments. This is a multi-purpose account, but you can view #ThingUmbrella tagged posts only and/or subscribe to those via RSS.
Join the discussions here on Github, get in touch via Mastodon or use the issue tracker. If you'd like to contribute in other ways, please first read this document.
In general, we welcome contributions of all kinds (docs, examples, bug fixes, feature requests, financial contributions etc.). You can find a detailed overview for contributors here: CONTRIBUTING.md.
Note: The default branch for this repo is develop and all PRs should be
based on this branch. This too means, the README files on this branch might
refer to yet-unreleased features or packages. Please use the
main branch for viewing the most
recently released version(s)!.
Wiki
To date, the wiki has only been updated sporadically, but please be sure to check it out for project-wide glossary, information, cookbooks, useful snippets etc.
Projects
Latest updates
As of: 2025-07-12
Algorithms & data structures
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/adjacency |  | changelog | Adjacency matrices & graph algorithms |
@thi.ng/arrays |  | changelog | Array utilities |
@thi.ng/associative |  | changelog | Alt Set & Map implementations |
@thi.ng/atom |  | changelog | Immutable value wrappers, views, history |
@thi.ng/bitfield |  | changelog | 1D/2D bit field implementations |
@thi.ng/bidir-index |  | changelog | Bi-directional key-value map/index |
@thi.ng/buffers |  | changelog | Generic read/write buffers w/ diff. behaviors |
@thi.ng/cache |  | changelog | In-memory caches / strategies |
@thi.ng/cellular |  | changelog | Highly configurable 1D Cellular automata |
@thi.ng/dcons |  | changelog | Doubly-linked list |
@thi.ng/diff |  | changelog | Array & object diffing |
@thi.ng/disjoint-set |  | changelog | Disjoint Set data structure |
@thi.ng/dgraph |  | changelog | Dependency graph |
@thi.ng/ecs |  | changelog | Entity-Component System |
@thi.ng/gp |  | changelog | Genetic programming helpers / AST gen |
@thi.ng/heaps |  | changelog | Binary & d-ary heap impls |
@thi.ng/idgen |  | changelog | Versioned ID generation / free-list |
@thi.ng/k-means |  | changelog | K-means clustering of n-D data |
@thi.ng/leaky-bucket |  | changelog | Counter-based Leaky Bucket implementation |
@thi.ng/ramp |  | changelog | Parametric, interpolated lookup tables |
@thi.ng/quad-edge |  | changelog | Quad-edge, dual-graph data structure |
@thi.ng/resolve-map |  | changelog | DAG computations & value resolution |
@thi.ng/sorted-map |  | changelog | Sorted map & set datastructure |
@thi.ng/sparse-set |  | changelog | Sparse set datastructure |
@thi.ng/tensors |  | changelog | 1D-4D tensors, views & operations |
@thi.ng/text-analysis |  | changelog | Tokenization, statistics, vector encoding, clustering |
@thi.ng/trie |  | changelog | Trie-based map datastructure w/ prefix queries |
@thi.ng/vclock |  | changelog | Vector clock functions / comparators |
@thi.ng/zipper |  | changelog | Immutable tree editing / navigation |
DSLs
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/lispy |  | changelog | Extensible, interpreted Lisp-style DSL |
@thi.ng/pointfree |  | changelog | Stack-based DSL & functional composition |
@thi.ng/pointfree-lang |  | changelog | Forth-like syntax layer for @thi.ng/pointfree |
@thi.ng/proctext |  | changelog | Procedural text generation engine |
@thi.ng/sexpr |  | changelog | S-Expression parser & runtime infrastructure |
File / file format / hardware support
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/axidraw |  | changelog | Minimal, declarative AxiDraw plotter controller |
@thi.ng/bencode |  | changelog | Bencode binary format encoding |
@thi.ng/csv |  | changelog | Customizable CSV parser/object mapper |
@thi.ng/dot |  | changelog | Graphviz DOM & export |
@thi.ng/dsp-io-wav |  | changelog | WAV file format exporter |
@thi.ng/egf |  | changelog | Extensible Graph Format |
@thi.ng/file-io |  | changelog | Assorted file I/O utils for NodeJS |
@thi.ng/geom-io-obj |  | changelog | Wavefront OBJ model parser |
@thi.ng/hiccup-css |  | changelog | CSS from nested JS data structures |
@thi.ng/hiccup-html |  | changelog | Type-checked HTML5 element wrappers for hiccup |
@thi.ng/hiccup-html-parse |  | changelog | HTML parsing & transformation to hiccup format |
@thi.ng/hiccup-markdown |  | changelog | Hiccup-to-Markdown serialization |
@thi.ng/hiccup-svg |  | changelog | hiccup based SVG vocab |
@thi.ng/iges |  | changelog | IGES format geometry serialization |
@thi.ng/markdown-table |  | changelog | Markdown table generator / formatter |
@thi.ng/mime |  | changelog | File extension to MIME type mappings |
@thi.ng/msgpack |  | changelog | Msgpack serialization/deserialization |
@thi.ng/pixel-io-geotiff |  | changelog | GeoTIFF reader support for thi.ng/pixel |
@thi.ng/pixel-io-netpbm |  | changelog | 1/8/16/24bit NetPBM image format reader/writer |
@thi.ng/pixel-io-pfm |  | changelog | Portable FloatMap image format reader/writer |
@thi.ng/prefixes |  | changelog | Linked Data, RDF & xmlns prefixes/URLs |
@thi.ng/sax |  | changelog | SAX-like XML parser / transducer |
@thi.ng/tangle |  | changelog | Literate programming utilities |
Frontend / UI
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/blurhash |  | changelog | Fast image blurhash encoder/decoder |
@thi.ng/canvas |  | changelog | Canvas creation & HDPI support helpers |
@thi.ng/dl-asset |  | changelog | Asset/canvas/file download helpers |
@thi.ng/emoji |  | changelog | Bi-directional emoji lookup tables (names/chars) |
@thi.ng/hdiff |  | changelog | String diffing w/ hiccup output (includes CLI) |
@thi.ng/hdom |  | changelog | Hiccup based VDOM & diffing |
@thi.ng/hdom-canvas |  | changelog | hdom adapter for hiccup-canvas |
@thi.ng/hdom-components |  | changelog | hdom based UI components |
@thi.ng/hdom-mock |  | changelog | hdom mock implementation (testing / prototyping) |
@thi.ng/hiccup |  | changelog | S-expression based HTML/XML serialization |
@thi.ng/hiccup-canvas |  | changelog | hiccup interpreter for canvas api |
@thi.ng/hiccup-carbon-icons |  | changelog | IBM Carbon icons in hiccup format |
@thi.ng/imgui |  | changelog | Immediate mode GUI |
@thi.ng/interceptors |  | changelog | Composable event handlers & processor |
@thi.ng/meta-css |  | changelog | CSS framework codegen, transpiler, bundler |
@thi.ng/rdom |  | changelog | Reactive, diff-less, async UI components |
@thi.ng/rdom-canvas |  | changelog | rdom component wrapper for thi.ng/hiccup-canvas |
@thi.ng/rdom-components |  | changelog | Unstyled, customizable component collection |
@thi.ng/rdom-forms |  | changelog | Datadriven HTML form generation |
@thi.ng/router |  | changelog | Customizable browser & non-browser router |
@thi.ng/text-canvas |  | changelog | Text-mode canvas, drawing, tables, charts |
@thi.ng/text-format |  | changelog | Color text formatting w/ ANSI & HTML presets |
Fundamentals
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/args |  | changelog | Declarative & functional CLI arg parsing & coercions |
@thi.ng/api |  | changelog | Common types, decorators, mixins |
@thi.ng/bench |  | changelog | Basic benchmarking helpers |
@thi.ng/checks |  | changelog | Type & value checks |
@thi.ng/compare |  | changelog | Comparators |
@thi.ng/compose |  | changelog | Functional composition helpers |
@thi.ng/date |  | changelog | Date/time iterators, formatters, rounding |
@thi.ng/defmulti |  | changelog | Dynamic multiple dispatch |
@thi.ng/distance |  | changelog | n-D distance metrics & K-nearest neighborhoods |
@thi.ng/equiv |  | changelog | Deep value equivalence checking |
@thi.ng/errors |  | changelog | Custom error types |
@thi.ng/expose |  | changelog | Conditional global variable exposition |
@thi.ng/fibers |  | changelog | Process hierarchies & ops for cooperative multitasking |
@thi.ng/hex |  | changelog | Hex value formatters for U4-64 words |
@thi.ng/logger |  | changelog | Basis infrastructure for arbitrary logging |
@thi.ng/memoize |  | changelog | Function memoization w/ customizable caching |
@thi.ng/object-utils |  | changelog | Plain JS object & map manipulation |
@thi.ng/oquery |  | changelog | Pattern based query engine for JS objects |
@thi.ng/parse |  | changelog | Parser combinators & AST generator/transformer |
@thi.ng/paths |  | changelog | Immutable nested object accessors |
@thi.ng/strings |  | changelog | Higher-order string formatting utils |
@thi.ng/system |  | changelog | Minimal life cycle container for stateful app components |
@thi.ng/timestamp |  | changelog | Timestamp abstraction/wrapper |
@thi.ng/transclude |  | changelog | Template engine for text document generation |
@thi.ng/units |  | changelog | Extensible SI unit conversions |
Geometry, image & visualization
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/boids |  | changelog | Configurable n-dimensional boids simulation |
@thi.ng/color |  | changelog | Color conversions, gradients |
@thi.ng/color-palettes |  | changelog | Collection of image-based color palettes |
@thi.ng/dgraph-dot |  | changelog | Dependency graph -> Graphviz |
@thi.ng/distance-transform |  | changelog | Image based distance field generation |
@thi.ng/fuzzy-viz |  | changelog | Visualization, instrumentation for @thi.ng/fuzzy |
@thi.ng/geom |  | changelog | 2D only geometry types & ops |
@thi.ng/geom-accel |  | changelog | Spatial indexing data structures |
@thi.ng/geom-axidraw |  | changelog | Shape conversions for AxiDraw pen plotter |
@thi.ng/geom-arc |  | changelog | 2D elliptic arc utils |
@thi.ng/geom-clip-line |  | changelog | 2D line clipping |
@thi.ng/geom-clip-poly |  | changelog | 2D convex polygon clipping |
@thi.ng/geom-closest-point |  | changelog | Closest point helpers |
@thi.ng/geom-fuzz |  | changelog | Fuzzy 2D shape drawing / filling |
@thi.ng/geom-hull |  | changelog | 2D convex hull (Graham scan) |
@thi.ng/geom-isec |  | changelog | Point & shape intersection tests |
@thi.ng/geom-isoline |  | changelog | 2D contour line extraction |
@thi.ng/geom-poly-utils |  | changelog | 2D polygon helpers |
@thi.ng/geom-resample |  | changelog | nD polyline / curve resampling |
@thi.ng/geom-sdf |  | changelog | 2D SDF creation, conversions, operators, utilities |
@thi.ng/geom-splines |  | changelog | nD cubic / quadratic spline ops |
@thi.ng/geom-subdiv-curve |  | changelog | nD iterative subdivision curves |
@thi.ng/geom-tessellate |  | changelog | nD convex polygon tessellators |
@thi.ng/geom-trace-bitmap |  | changelog | bitmap image to vector conversion |
@thi.ng/geom-voronoi |  | changelog | 2D iterative delaunay/voronoi |
@thi.ng/geom-webgl |  | changelog | thi.ng/geom / WebGL shape conversion & interop |
@thi.ng/imago |  | changelog | Declarative & extensible image processing pipelines |
@thi.ng/lsys |  | changelog | Extensible L-System architecture |
@thi.ng/pixel |  | changelog | Multi-format pixel buffers |
@thi.ng/pixel-analysis |  | changelog | Image color & feature analysis utilities |
@thi.ng/pixel-convolve |  | changelog | Extensible image convolution & kernel presets |
@thi.ng/pixel-dominant-colors |  | changelog | k-means based dominant colors extraction |
@thi.ng/pixel-dither |  | changelog | Image dithering w/ various algorithm presets |
@thi.ng/pixel-flow |  | changelog | Optical flow analysis |
@thi.ng/poisson |  | changelog | nD Poisson disk sampling |
@thi.ng/porter-duff |  | changelog | Alpha blending / compositing ops |
@thi.ng/rasterize |  | changelog | Shape drawing, filling & rasterization |
@thi.ng/scenegraph |  | changelog | Extensible 2D/3D scenegraph |
@thi.ng/simd |  | changelog | WebAssembly SIMD vector batch processing |
@thi.ng/tsne |  | changelog | Configurable t-SNE visualization solver |
@thi.ng/viz |  | changelog | Declarative & functional data visualization toolkit |
Iterator, stream & sequence processing
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/csp |  | changelog | Channel based async ops |
@thi.ng/grid-iterators |  | changelog | 2D grid iterator strategies |
@thi.ng/seq |  | changelog | Lisp/Clojure-style sequence abstraction |
@thi.ng/transducers |  | changelog | Composable data transformations |
@thi.ng/transducers-async |  | changelog | Async transducers, reducers & iterators |
@thi.ng/transducers-binary |  | changelog | Binary data related transducers |
@thi.ng/transducers-fsm |  | changelog | Finite state transducer |
@thi.ng/transducers-hdom |  | changelog | Transducer based hdom UI updates |
@thi.ng/transducers-patch |  | changelog | Patch-based, array & object editing |
@thi.ng/transducers-stats |  | changelog | Technical / statistical analysis |
Low-level, binary, memory management, interop
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/base-n |  | changelog | Arbitrary base-n encoding/decoding with presets |
@thi.ng/binary |  | changelog | Assorted binary / bitwise ops, utilities |
@thi.ng/bitstream |  | changelog | Bitwise input / output streams |
@thi.ng/block-fs |  | changelog | Block-based storage & filesystem |
@thi.ng/dlogic |  | changelog | Digital logic ops / constructs |
@thi.ng/leb128 |  | changelog | WASM based LEB128 varint encoder / decoder |
@thi.ng/malloc |  | changelog | Raw & typed array memory pool & allocator |
@thi.ng/morton |  | changelog | Z-order-curve / Morton coding |
@thi.ng/range-coder |  | changelog | Binary data Range encoder / decoder |
@thi.ng/rle-pack |  | changelog | Run-length encoding data compression |
@thi.ng/soa |  | changelog | Memory mapped data structures & serialization |
@thi.ng/unionstruct |  | changelog | Wrapper for C-like structs / unions |
@thi.ng/vector-pools |  | changelog | Data structures for memory mapped vectors |
@thi.ng/wasm-api |  | changelog | Modular, extensible JS/WebAssembly bridge API |
@thi.ng/wasm-api-bindgen |  | changelog | Polyglot bindings code generator for C/Zig/TS |
@thi.ng/wasm-api-canvas |  | changelog | WASM-side Canvas2D API bindings |
@thi.ng/wasm-api-dom |  | changelog | WASM-side DOM manipulation |
@thi.ng/wasm-api-schedule |  | changelog | WASM-side delayed code execution/scheduling |
Maths
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/dual-algebra |  | changelog | Dual number algebra / automatic differentiation |
@thi.ng/dsp |  | changelog | DSP utils, composable signal gens/processors |
@thi.ng/fuzzy |  | changelog | Fuzzy logic primitives & rule inference engine |
@thi.ng/intervals |  | changelog | Open/closed intervals, queries, set ops |
@thi.ng/math |  | changelog | Assorted common math functions & utilities |
@thi.ng/matrices |  | changelog | Matrix operations |
@thi.ng/sparse |  | changelog | Sparse matrix & vector impls |
@thi.ng/timestep |  | changelog | Fixed timestep simulation updates with state interpolation |
@thi.ng/vectors |  | changelog | Fixed & arbitrary-length vector ops |
Network
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/server |  | changelog | Minimal, extensible, interceptor-based HTTP server |
Randomness
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/colored-noise |  | changelog | 1D colored noise generators |
@thi.ng/ksuid |  | changelog | K-sortable unique identifiers, binary & base-N encoded |
@thi.ng/lowdisc |  | changelog | n-D Low discrepancy sequence generators |
@thi.ng/random |  | changelog | Seedable PRNG implementations, distributions & utilities |
@thi.ng/random-fxhash |  | changelog | PRNG impl & utilities for fxhash projects |
@thi.ng/uuid |  | changelog | Binary & string-based UUID v4 generator |
Reactive programming
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/rstream |  | changelog | Push-based, reactive event stream primitves |
@thi.ng/rstream-csp |  | changelog | Adapter bridge CSP -> rstream |
@thi.ng/rstream-dot |  | changelog | Graphviz visualization of rstream topologies |
@thi.ng/rstream-gestures |  | changelog | Mouse & touch event stream abstraction |
@thi.ng/rstream-graph |  | changelog | Declarative dataflow graph construction |
@thi.ng/rstream-log |  | changelog | Hierarchical structured data logging |
@thi.ng/rstream-log-file |  | changelog | Log-file output handler |
@thi.ng/rstream-query |  | changelog | Triple store & query engine |
WebGL / GPGPU
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/shader-ast |  | changelog | AST DSL for x-platform shader code |
@thi.ng/shader-ast-glsl |  | changelog | GLSL code generator |
@thi.ng/shader-ast-js |  | changelog | JS code generator |
@thi.ng/shader-ast-optimize |  | changelog | AST code optimization strategies |
@thi.ng/shader-ast-stdlib |  | changelog | 100+ useful AST shader functions |
@thi.ng/webgl |  | changelog | WebGL 1/2 / GPGPU facilities |
@thi.ng/webgl-msdf |  | changelog | MSDF font rendering |
@thi.ng/webgl-shadertoy |  | changelog | Shadertoy-like WebGL setup |
Deprecated packages
The following packages have been deprecated. Their readmes describe reasons and alternatives:
| Project | Version | Changelog | Description |
|---|---|---|---|
@thi.ng/fsm |  | changelog | FSM / parser primitives |
@thi.ng/geom-api |  | changelog | Shared types for thi.ng/geom packages |
@thi.ng/iterators |  | changelog | ES6 generators / iterators |
@thi.ng/testament |  | changelog | Minimal test runner |
Building
1git clone https://github.com/thi-ng/umbrella.git 2cd umbrella 3 4yarn install 5yarn build
Once the entire mono-repo has been fully built at least once before, individual packages can then be (re)built like so:
1yarn workspace @thi.ng/transducers run build 2 3# or 4 5(cd packages/transducers && yarn build) 6 7# or 8 9(cd packages/transducers && yarn build:esbuild)
Note: The yarn build script alias will also generate TS type declaration
files. This step is only needed once in the beginning or if updating the public
API of a package. If you're confident it's not needed, using the build:esbuild
alias is sufficient and much faster. Also, TS declaration files can be manually
rebuilt via build:decl...
Building example projects
Please see the example build instructions in the wiki for further details.
Testing
(Most, but not all packages have tests)
Test for all packages are run via bun.sh.
1# build all packages, then run all tests (in one go) 2yarn test 3 4# only run all tests 5yarn test:only 6 7# or individually 8yarn workspace @thi.ng/rstream run test
Building API docs
Autogenerated documentation (using
TypeDoc) will be saved under
/packages/*/doc/ (more info).
1yarn doc
Extracting code examples from readme files & comments
All packages in this repo have prepared infrastructure to extract various code examples & snippets from their README files and from comments in the source code. Altogether, there're 800-1000 of them in this repo, but only ~420 have been processed thus far (it's an ongoing time consuming manual process to prepare & check each of them, but work is under way! Please get in touch if you want to help!).
The code extraction is handled via thi.ng/tangle, itself a part of thi.ng/umbrella. You can read more details about this process here:
To extract code blocks as source files from readmes:
1# in the repo root (to process all packages) 2yarn doc:readme 3 4# for a single package only 5(cd packages/<name> && yarn doc:readme)
To extract example code blocks from doc strings (API docs) in source code:
1# in the repo root (to process all packages) 2yarn tool:tangle 3 4# for a single package only 5(cd packages/<name> && yarn tool:tangle)
In all cases, the extracted files will be saved in each package's /export
folder and can then be run directly via bun:
1bun packages/arrays/export/topo-sort.ts
Acknowledgements
Maintaining a large monorepo like this requires a lot of infrastructure and I'm grateful for the tooling provided by the following projects to simplify those tasks:
License
© 2015 - 2025 Karsten Schmidt // Apache Software License 2.0
Contributors ✨
Thanks goes to these wonderful people (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!
No vulnerabilities found.
Reason
GitHub workflow tokens follow principle of least privilege
Details
- Info: found token with 'none' permissions: .github/workflows/test.yml:1
- Info: no jobLevel write permissions found
Reason
no dangerous workflow patterns detected
Reason
30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: Apache License 2.0: LICENSE:0
Reason
no binaries found in the repo
Reason
all dependencies are pinned
Details
- Info: 2 out of 2 GitHub-owned GitHubAction dependencies pinned
- Info: 2 out of 2 third-party GitHubAction dependencies pinned
Reason
security policy file detected
Details
- Info: security policy file detected: SECURITY.md:1
- Warn: no linked content found
- Info: Found disclosure, vulnerability, and/or timelines in security policy: SECURITY.md:1
- Info: Found text in security policy: SECURITY.md:1
Reason
6 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-rj44-gpjc-29r7
- Warn: Project is vulnerable to: GHSA-8ppr-www8-hfjx
- Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
- Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
- Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
- Warn: Project is vulnerable to: GHSA-f5x3-32g6-xq36
Reason
Found 0/30 approved changesets -- score normalized to 0
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
no SAST tool detected
Details
- Warn: no pull requests merged into dev branch
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Score
6.2
/10
Last Scanned on 2025-06-30
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