> :warning: **Experimental. Zero tests. Please report issues**

textlint rule that disallow zero width spaces.

A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.

Is this value negative zero? === will lie to you

Catch unexpected visual changes & UI bugs in your stories

A drop-in replacement / proxy to Node.js path, replacing \\ with / for all results & adding file extension functions.

6 AI agents discover, test, validate, and self-heal your web app — zero tests written. Point it at a URL, get a tamper-proof audit report.

A set of helpers for testing Effects with vitest

Test if a double-precision floating-point numeric value is positive zero.

Fast robust predicates for computational geometry

Test if a double-precision floating-point numeric value is negative zero.

A unified, high-performance i18next CLI.

Give me a string and I'll tell you if it's a valid npm package name

TOML parser for Node.js (TOML v1.1.0 compliant)

Lightweight Express middleware for serving interactive ReDoc API documentation from OpenAPI/Swagger specs. TypeScript support, 100% test coverage, ES5 compatible.

Lexer / tokenizer

fast mariadb or mysql connector.

An absurdly small glob matcher that packs a punch.

The Firebase Authenticaton component of the Firebase JS SDK.

The fastest javascript implementation of a double-ended queue. Used by the official Redis, MongoDB, MariaDB & MySQL libraries for Node.js and many other libraries. Maintains compatability with deque.