npm packages

Istanbul coverage provider for Vitest

Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.

Validate identifier/keywords name

A structuredClone polyfill

Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.

A Long class for representing a 64-bit two's-complement integer value.

ES2015-compliant shim for Object.is - differentiates between -0 and +0

Is this an arguments object? It's a harder question than you think.

Regular expression for matching a shebang line

Is this value a JS SharedArrayBuffer?

Fastest Levenshtein distance implementation in JS.

Get the first fulfilled promise that satisfies the provided testing function

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

TypeScript definitions for yargs-parser

Check if the process is running inside a container (Docker/Podman)

Find a file or directory by walking up parent directories — Zero dependencies

No description provided.

Strip comments from JSON. Lets you use comments in your JSON files!

convert from v8 coverage format to istanbul's format

Node.js library that communicates with Embedded Dart Sass using the Embedded Sass protocol

Robustly `.call.bind()` a function

Timing safe string compare using double HMAC

Which kind of boxed JS primitive is this?

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

Get an iterator for any JS language value. Works robustly across all environments, all versions.

TypeScript definitions for istanbul-lib-report

Turns an AST into code.

Match balanced character pairs, like "{" and "}"

No description provided.

Perform async work synchronously in Node.js using `worker_threads` with first-class TypeScript support.