isomorphic-assert
Small isomorphic assert polyfill
A React helper hook for scheduling a layout effect with a fallback to a regular effect for environments where layout effects should not be used (such as server-side rendering).
Makes it possible to use DOMPurify on server and client in the same way.
minimalistic-assert ===
The assert module from Node.js, for the browser.
hast utility that turns HTML into a syntax tree (while being small in browsers)
A pure JavaScript reimplementation of git for node and browsers
Isomorphic WHATWG Fetch API, for Node & Browserify
Isomorphic implementation of WebSocket
Parses, serializes, and manipulates MIME types, according to the WHATWG MIME Sniffing Standard
correct invalid SPDX expressions
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.
Extra assertions on top of node's assert module
Is this value a JS ArrayBuffer?
Is this value a JS SharedArrayBuffer?
Which kind of boxed JS primitive is this?
Switches between unfetch & node-fetch for client & server.
What is the type of this builtin JS value?
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.
Is this specifier a node.js core module?
`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.