Test While Developing (TWD) - in-browser testing
Fiat currency metadata.
WebSocket relay for TWD — enables AI agents and external tools to run and observe in-browser tests
CLI tool for running TWD tests with Puppeteer
A map of locale codes to ISO 4217 currency codes. Supports BCP 47, i18n, and ISO 3166-1 alpha-2 formats.
Pre-interview test for Perpetual Protocol.
MarkOne is a web application that provides boat data on mobile devices. (It is still in the development phase)
Array#isArray for older browsers
JSON parse & stringify that supports binary via bops & base64
Run a function exactly one time
CLI arguments parser. Native port of python's argparse.
Get the command from a shebang
ECMAScript AST recursive visitor
Callback wrapping utility
Resolve the path of a module like `require.resolve()` but from a given path
deterministic `JSON.stringify()` - a faster version of substack's json-stable-strigify without jsonify
Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible
Allows users to use generators in order to write common functions that can be both sync or async.
Returns true if a string has an extglob.
Buffers events from a stream until you are ready to handle them.
The Node.js `util.deprecate()` function with browser support
type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.
process.nextTick but always with args
deterministic JSON.stringify() with custom sorting to get deterministic hashes from stringified results, with no public domain dependencies