Yarn is a latest package manager for Node.js. It’s much faster than npm and installs packages simultaneously. Which allows to install, update, configure, and remove npm packages with improvements over npm. This guide covers how to install Yarn on Ubuntu 20.04 Focal Fossa system and basic use of yarn to create a new project.
- Make sure that you are logged in as root or user with sudo privileges to install Yarn on Ubuntu 20.04.
- Before you go ahead, make sure you have installed Node.js on your Ubuntu system.
Step 1 – Add Repository
Before the installation of yarn, you have to add the GPG key to verify the yarn packages. To import GPG type the following command on the terminal:
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
Step 2 – Enable Yarn Repository
To install yarn on your system, you need enable the yarn repository. To do so, type the following command:
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
Step 3 – Install Yarn
Once the repository is enabled, update the apt cache and install Yarn, type:
sudo apt update && sudo apt install yarn
Step 3 – Check Yarn Version
To verify the installation check the version by typing:
At this stage, Yarn is installed on your Debian system. Now we will some basic usage of Yarn commands:
Create a new project
You need to use
yarn init command followed by the project name to create a new Yarn project. For example, to create a project with name
yarn init demo
You will be prompted for few questions. Give answers for it or you can skip by pressing
It will create a
package.json file which contains all the information which you provided.
For existing project you also can initiate yarn, navigate to directory and run:
Add a package to your project, use the
yarn add command followed by the package name:
yarn add PACKAGE_NAME
The above command will install latest version of the package and update the project’s
yarn.lock files. For a specific version of package specify version as following:
yarn add PACKAGE_NAME@VERSION
You can update the packages by simple use of following command:
It will update all the project dependencies to their latest version. You can specify the package name and version for specific update.
To remove a package from the project’s dependencies, use the
yarn remove command followed by the package name:
yarn remove PACKAGE_NAME
Installing all project dependencies
To install all the dependencies of an existing project that are specified in the
package.json file run:
Congratulations! The yarn has been successfully installed on your system Ubuntu 20.04 LTS. This guide also covers use of common commands of yarn. You can learn more about Yarn at documentation page.
If you have any questions or suggestion, leave a comment below.