The Next Generation of CSS-in-JS.

string representations of objects in node and the browser

Implements performance.now (based on process.hrtime).

JSON-RPC 1.0/2.0 compliant server and client

the complete solution for node.js command-line programs

Returns true if the value is a number. comprehensive tests.

find the closest package.json

Returns true if the platform is windows. UMD module, works with node.js, commonjs, browser, AMD, electron, etc.

TypedArray polyfill for old browsers

Fill in a range of numbers or letters, optionally passing an increment or multiplier to use.

Native Abstractions for Node.js: C++ header for Node 0.8 -> 18 compatibility

A light, featureful and explicit option parsing library.

Lodash modular utilities.

The modern build of lodashâ s internal `getNative` as a module.

Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of the same string and options, resulting in surprising performance improvements.

A React helper hook for storing latest value in ref object (updated in useEffect's callback).

Polyfill to provide array.find on IE.

type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

Create and parse Content-Disposition header

Node.js API (Node-API)

Lightweight library with aggregate functions for composing asynchronous and event-based operations in JavaScript

A querystring parser that supports nesting and arrays, with a depth limit

styled API for emotion

Tools for working with sourceMappingURL comments.