The assert module from Node.js, for the browser.
Sort an object's keys, including an optional key list
ES2015-compliant shim for Object.is - differentiates between -0 and +0
Same as JSON but with added support for `Date`, `undefined`, `Map`, `Set`, and more.
Type check values
minimalistic-assert ===
Encode compact, canonical JSON.
typesafe assertion library for TypeScript 3.7+
correct invalid SPDX expressions
Parses, serializes, and manipulates MIME types, according to the WHATWG MIME Sniffing Standard
Synchronous validation of a path existing either as a file or as a directory.
assert with status codes
A robust, ES3 compatible, "has own property" predicate.
Is this value a JS ArrayBuffer?
Extra assertions on top of node's assert module
Generic options parameter handling.
The node.js assert module, re-packaged for web browsers.
Is this value a JS SharedArrayBuffer?
`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.
Is this specifier a node.js core module?
Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.
Which kind of boxed JS primitive is this?
What is the type of this builtin JS value?
traverse power-assert context