node.js version
print in command line (omit 'sudo' on Windows):
sudo node --version
update node.js
print in command line (omit 'sudo' on Windows):
sudo npm cache clean -f sudo npm install -g n sudo n stable
print in command line (omit 'sudo' on Windows):
sudo node --version
print in command line (omit 'sudo' on Windows):
sudo npm cache clean -f sudo npm install -g n sudo n stable