Important: This documentation covers Yarn 1 (Classic).

For Yarn 2+ docs and migration guide, see yarnpkg.com.

found 708 packages in 9ms

ua-parser-js47.8mAGPL-3.0-or-later2.0.0

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

faisalmanabout 1 month agouser-agent, client-hints, parser, browser

is-windows61.7mMIT1.0.2

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

jonschlinkertover 2 years agocheck, cywin, is, is-windows

temp-dir39.7mMIT3.0.0

Get the real path of the system temp directory

sindresorhusover 1 year agotemp, tmpdir, os, system

Node.js os.homedir polyfill for older versions of node.js.

doowbover 2 years agohome, homedir, homedirectory, os

environment19.6mMIT1.1.0

Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc

sindresorhus9 months agoruntime, environment, env, execution

Packages

Lightweight debugging utility for Node.js and the browser

Lodash modular utilities.

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

Higher-order functions and common patterns for asynchronous code

React is a JavaScript library for building user interfaces.

Babel compiler core.