Asserts the node version against one from the package.json or .nvmrc file
Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.
Validate and format function arguments ( handles types and optionals)
Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.
Soft Asserts JSON, Array and other data
Assert that a value is truthy
ES proposal-spec-compliant Object.fromEntries shim.
Assertion module for Japa
High Level DOM Assertions for QUnit
Test if a value is an arguments object.
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
Mini assertion library
Babel plugin for power-assert
Drop-in replacement for assert to give diff on deepEqual.
JavaScript micro templates.
TypeScript definitions for power-assert
Image comparison chai assert (uses ImageMagick).
Converts an array of GLSL tokens to a plain source string
ES spec-like internal slots
Binary serialization of arbitrarily complex structures that sort element-wise
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
Test if a value is an array-like object.
Assertion library for JavaScript
Store information about any JS value in a side channel. Uses WeakMap if available.