Check if a module ID is resolvable with require()

Get a compare function for array to sort

Test runner for Storybook stories

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

Compare json schemas smarter.

Turn anything into an array

convert from v8 coverage format to istanbul's format

Synchronously write a file and create its ancestor directories if needed

Translate ECDSA signatures between ASN.1/DER and JOSE-style concatenation

Turn any collection of objects into its own efficient tree or linked list using Symbol

Blazing fast and accurate glob matcher written in JavaScript, with no dependencies and full support for standard and extended Bash glob features, including braces, extglobs, POSIX brackets, and regular expressions.

merge() utility function

Deprecate all the things

Wraps a transform and provides caching

Create your next immutable state by mutating the current one

AST-aware v8-to-istanbul

maps a URL to an identifier

A karma plugin which uploads coverage reports to coveralls.io

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.