Important: This documentation covers Yarn 1 (Classic).

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

keywords: check

found 5,285 packages in 52ms

is-plain-obj213.2mMIT4.1.0

Check if a value is a plain object

sindresorhusover 2 years agoobject, is, check, test

is-plain-object178.6mMIT5.0.0

Returns true if an object was created by the Object constructor, or Object.create(null).

jonschlinkertover 2 years agocheck, is, is-object, isobject

file-type129.9mMIT21.3.0

Detect the file type of a file, stream, or data

sindresorhus5 days agomime, file, type, magic

has-flag741.1mMIT5.0.1

Check if argv has a specific flag

sindresorhusover 2 years agohas, check, detect, contains

is-fullwidth-code-point707.8mMIT5.1.0

Check if the character represented by a given Unicode code point is fullwidth

sindresorhus4 months agofullwidth, full-width, full, width

Packages

Lightweight debugging utility for Node.js and the browser

debug, log, debugger

Lodash modular utilities.

modules, stdlib, util

React is a JavaScript library for building user interfaces.

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

querystring, qs, query, url

Higher-order functions and common patterns for asynchronous code

async, callback, module, utility

babel babel-core

Babel compiler core.

6to5, babel, classes, const