Important: This documentation covers Yarn 1 (Classic).

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

found 3,973 packages in 9ms

msw20.4mMIT2.7.4

Seamless REST/GraphQL API mocking library for browser and Node.js.

mswjs2 days agoapi, mock, mocking, worker

memfs75.6mApache-2.04.17.0

In-memory file-system with Node's fs API.

streamich3 months agofs, filesystem, fs.js, memory-fs

sinon29.4mBSD-3-Clause20.0.0

JavaScript test spies, stubs and mocks.

sinonjs20 days agosinon, test, testing, unit

Low-level HTTP/HTTPS/XHR/fetch request interception library.

mswjs2 days agorequest, intercept, http, https

A response-like object for mocking a Node.js HTTP response stream

sindresorhusalmost 2 years agohttp, https, response, mock

Packages

Lightweight debugging utility for Node.js and the browser

Lodash modular utilities.

React is a JavaScript library for building user interfaces.

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

Higher-order functions and common patterns for asynchronous code

Babel compiler core.