node -v
# v8.6.0
npm -v
# 5.5.1
ng -v
# zsh: command not found: ng
npm install -g @angular/cli
...waiting...
ng -v
# @angular/cli: 1.4.7
ng set --global packageManager=yarn
node -v
# v8.6.0
npm -v
# 5.5.1
ng -v
# zsh: command not found: ng
npm install -g @angular/cli
...waiting...
ng -v
# @angular/cli: 1.4.7
ng set --global packageManager=yarn