63 lines
1.2 KiB
Markdown
63 lines
1.2 KiB
Markdown
---
|
|
title: Yarn
|
|
category: JavaScript libraries
|
|
layout: 2017/sheet
|
|
weight: -3
|
|
updated: 2017-09-08
|
|
---
|
|
|
|
### npm equivalents
|
|
|
|
| npm | yarn |
|
|
| --- | ---- |
|
|
| `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` |
|
|
| `./node_modules/.bin/gulp` | `yarn run gulp` |
|
|
{: .-left-align.-headers}
|
|
|
|
### yarn add
|
|
|
|
```
|
|
--dev
|
|
--peer
|
|
--optional
|
|
--exact
|
|
--tilde
|
|
```
|
|
|
|
These options are available for `yarn add`.
|
|
|
|
### Workspaces
|
|
|
|
```json
|
|
/* 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](https://yarnpkg.com/blog/2017/08/02/introducing-workspaces/)
|
|
|
|
### Selective version resolution
|
|
|
|
```json
|
|
/* 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](https://github.com/yarnpkg/yarn/pull/4105)
|