It was created to solve a set of problems with the npm such as speeding up the packages installation process by parallelizing operations and reducing errors related to network connectivity.
In this tutorial, we will show you how to install Yarn on a CentOS 7 system from the Yarn RPM package repository.
Before starting with the tutorial, make sure you are logged in as a user with sudo privileges.
Installing Yarn on CentOS
To install Yarn on your CentOS 7 system, follow the steps below:
curl --silent --location https://rpm.nodesource.com/setup_10.x | sudo bash -
Install the Node.js package by typing:
sudo yum install nodejs
The official Yarn repository is consistently maintained and provides the most up-to-date version. To enable the Yarn repository and import the repository’s GPG key issue the following commands:
curl --silent --location https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo
Once the repository is added, you can install Yarn, by running:
sudo yum install yarn
Verify the installation by printing the Yarn version number:
At the time of writing this article, the latest version of Yarn is version
Now that you have Yarn installed on your CentOS system, we’ll explore some of the most common Yarn commands.
Creating a new project
To create a new Yarn project use the
yarn init command followed by the project name. For example, to create a project named
my_project you would type:
yarn init my_project
The script will ask you several questions. You can either answer or press
enter to use the default values:
yarn init v1.17.3 question name (vagrant): Linuxize question version (1.0.0): 0.0.1 question description: Testing Yarn question entry point (index.js): question repository url: question author: Linuxize question license (MIT): question private: success Saved package.json Done in 20.18s.
Once completed, the script will create a basic
package.json file that contains the information you provided. You can open and edit this file at any time.
To upgrade the packages, use one of the following commands:
If no package name is given, the command will update the project dependencies to their latest version according to the version range specified in the package.json file. Otherwise, only the specified packages are updated.
To upgrade a dependency use one of the following:
yarn upgrade [package_name]
The command above will update the project dependencies to their latest version according to the version range specified in the package.json file.
To remove a dependency simply type:
yarn remove [package_name]
This command will also update the project’s
Installing all project dependencies
To install all the dependencies of an existing project that are specified in the
package.json file run:
We have shown you how to install yarn on your CentOS 7 machine. For more information about yarn visit the Yarn documentation page.
If you have any questions or feedback, feel free to comment below.