node, npm and yarnI recommend using nvm (node version manager) to manage your installs of node. There are many different versions, and you may need to have more than one installed and switch between them for different projects.
nvmFollow the instructions here
Follow the instructions here
nvm is installed correctlyOpen a fresh terminal / command prompt on your computer.
Run nvm --version to check nvm has been installed properly.
Run nvm install node to install the latest version of node to your computer.
node is installed correctlyOpen a fresh terminal / command prompt on your computer (this is important to check it's working properly).
Run node --version to check node has been installed properly and npm --version to check npm has been installed properly.
yarnOnce you have node and npm installed you can install yarn using npm.
npm install --global yarn
You can then verify yarn is installed properly by running: yarn --version