Get more information from asserts & checks
Modify strings, generate sourcemaps
A collection of utilities for working with JSON objects, including diffing, conflict resolution, bundling and more.
typesafe assertion library for TypeScript 3.7+
Helper function for exhaustive checks of discriminated unions in TypeScript
Some useful utilities I often need
magic-string with AST shortcut.
The assert module from Node.js, for the browser.
minimalistic-assert ===
TypeScript definitions for http-assert
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.
correct invalid SPDX expressions
Type check values
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 SharedArrayBuffer?
Is this value a JS ArrayBuffer?
Which kind of boxed JS primitive is this?
What is the type of this builtin JS value?
A compiled-away, type-safe, readable RegExp alternative
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?