Use mixins in CSS
Parse and stringify URL query strings
Make a glob pattern absolute, ensuring that negative globs and patterns with trailing slashes are correctly handled.
Join urls and normalize as in path.join.
Check if a value is an object
Regular expression for matching reserved filename characters
A very strict and proper argument parser.
CSS to XPath
Generics to work with tuples in TypeScript
Resolve the path of a module like `require.resolve()` but from a given path
PostCSS plugin to transform clamp() to combination of min/max
Like `Object.keys()` but also includes symbols
A better Object.defineProperty()
A tiny, PEG-like system for building language grammars with regexes.
Center-align the text in a string.
Redact sensitive npm information from output
Extends `minimatch.match()` with support for multiple patterns
Create an error from multiple errors
Check if a filename is safe to use in a path join operation
A library for deep (recursive) merging of Javascript objects
For use with React PropTypes. Will error on any prop not explicitly specified.
Command line search and replace utility
Sort AST nodes in a document alphabetically
Option parsing for Node, supporting types, shorthands, etc. Used by npm.