How to install Yarn? I have previously created video on how to install yarn where I have shown how can we use installer to install yarn or use npm command to install yarn. Yarn has upgraded since then. In this video we will talk about that. First of all we should have NodeJS installed in our system.
Installing yarn depends on version of NodeJS that we have installed. If you have Node.js version 16.10 or greater than that. You need to use corepack that is included in NodeJS. If you are using Node.js version less than 16.10, you can use Yarn installer or use npm to install yarn globally or you can also install corepack for older version of NodeJS.
I use NVM to manage different versions of NodeJS. NVM is 'Node Version Manager'.
nvm list (check NodeJS versions installed in system)
nvm install 16.0.0 (this will install NodeJS v16)
nvm use 16.0.0 (start using installed NodeJS version)
Now we are using NodeJS 16.0.0 version
To verify Node JS version installed use:
node -v
Let's see which packages do we have installed globally in our current Node version.
npm list -g (see packages installed globally)
Let's install yarn
npm install -g yarn (install Yarn package manager globally)
Yarn v1.22 has been installed.
Let's use it.
yarn init (create package.json file / project dependencies file)
But there was an error
"Can't answer a question unless a user TTY"
To fix it, we can switch yarn version 2 or yarn berry or yarn latest or Yarn stable.
yarn set version berry (this will update Yarn)
You can also use
yarn set version latest
yarn -v (check Yarn version)
And now we can use yarn
yarn init
And we are able to use Yarn and create package.json file.
Now we can use yarn for this project that we are in right now.
You can also install corepack for older version of NodeJS.
npm uninstall -g yarn (uninstall Yarn from global dependencies)
npm list -g (list globally installed packages)
npm i -g corepack (install corepack globally)
corepack enable (enable corepack)
yarn -v
yarn init -2 (initialize Yarn)
yarn set version stable (Set Yarn version to stable / upgrade if needed)
Now lets use latest version of NodeJS.
nvm install latest (install latest version of NodeJS)
you can also use:
nvm install lts (Latest stable release of NodeJS)
To use this version use:
nvm use 17.5.0
Now we are using latest NodeJS version.
npm list -g (see global packages)
Now this NodeJS version has corepack included by default.
yarn -v will display that Yarn is not installed.
Let's enable corepack.
Corepack is disabled by default.
corepack enable (enable corepack)
yarn -v
now we have yarn
let's use it.
yarn init (will result in Error)
Let's set latest version for yarn.
yarn set version stable
yarn -v
yarn init
And now we can use yarn.
So for NodeJS version less than 16.10, we will have to install yarn globally to use it. For NodeJS version equal or greater than 16.10, preferred way to manage Yarn is through Corepack. It acts as an intermediary between you and Yarn, and lets you use different package manager versions across multiple projects.
You can use npm command
npm install --global yarn (install Yarn globally)
or
Install corepack
npm i -g corepack (install corepack globally in old NodeJS version)
If you want to install yarn package manager or you want to install yarn on windows or you are looking for how to install yarn on windows or yarn installation using npm this tutorial is the answer.
If you are using NodeJS version greater than or equal to 16.10, corepack is included with NodeJS by default. You just have to enable corepack and you will be able to use yarn. Corepack is there so that you can manage and switch package manager version easily. And there is also a migration guide for yarn if you need it.
Thank You!
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Install Yarn [ UPDATED ]
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