Yarn cheatsheet

npm	yarn
npm init	yarn init
npm install	yarn
npm install gulp --save	yarn add gulp
npm install gulp --save-dev --save-exact	yarn add gulp --dev --exact
npm install -g gulp	yarn global add gulp
npm update	yarn upgrade
./node_modules/.bin/gulp	yarn run gulp

--no-lockfile
--pure-lockfile
--frozen-lockfile
--silent
--offline
--update-checksums
--check-files
--flat
--force
--ignore-scripts
--modules-folder <path>
--production[=true|false]

These options are available for yarn install.

--dev
--peer
--optional
--exact
--tilde

These options are available for yarn add.

In package.json:

"workspaces": [
  "packages/*"
]

jest/
├─ package.json
└─ packages/
   ├─ jest-matcher-utils/
   │  └─ package.json
   └─ jest-diff/
      └─ package.json

(New in 1.0) Allows monorepos to share packages with each other. See: Introducing workspaces

In package.json:

"resolutions": {
  "**/sass-brunch/node-sass": "4.5.2"
}

(New in 1.0) Allows you to specify versions for sub-dependencies. See: Selective version resolutions

yarn create react-app hello

Install create-react-app and runs it. See: yarn create