Concise type assertions like a<map<fn:s>>
What is the type of this builtin JS value?
Synchronous validation of a path existing either as a file or as a directory.
Type check values
Extra assertions on top of node's assert module
Helper function for exhaustive checks of discriminated unions in TypeScript
Parses, serializes, and manipulates MIME types, according to the WHATWG MIME Sniffing Standard
ECMAScript spec abstract operations.
Power Assert output formatter
TypeScript definitions for http-assert
minimalistic-assert ===
The assert module from Node.js, for the browser.
Validate options object
extracts CSS into separate files
correct invalid SPDX expressions
typesafe assertion library for TypeScript 3.7+
assert with status codes
Featherweight assert module
A robust, ES3 compatible, "has own property" predicate.
format power-assert context
Give me a string and I'll tell you if it's a valid npm package license string
Is this value a JS ArrayBuffer?
Is this value a JS SharedArrayBuffer?
Assert that a Node-API value is a specified Node-API data type.