has-yarn : Check if a project is using Yarn. You can installing has-yarn npm packages, there are two ways to install this module locally and globaly. -g option is specified to global. Execute the below command.
$ sudo npm install has-yarn $ sudo npm install -g has-yarn
If want to update the has-yarn package execute the command as below,
$ sudo npm update has-yarn
Update package globally,
$ npm install -g has-yarn
$ sudo git clone https://github.com/rektide/has-yarn.git
$ sudo npm install -g ./has-yarn
has-yarn@1.0.0 /usr/lib/node_modules/has-yarn
You can uninstall or remove this package from your node_modules run the command as below,
$ sudo npm uninstall has-yarn
| Package Name | has-yarn |
| Version | 1.0.0 |
| Description | Check if a project is using Yarn |
| Released Date | 2016-12-12T15:55:01.875Z |
| Published by | sindresorhus |
| How to Learn | https://www.npmjs.com/package/has-yarn/tutorial |