how to run yarn on mac code example

Example 1: setting up yarn on my mac

sudo npm install --global yarn

Example 2: install yarn

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list