Des infos :

• https://github.com/joyent/node/wiki/installing-node.js-via-package-manager
• https://nodesource.com/blog/nodejs-v012-iojs-and-the-nodesource-linux-repositories

 # Note the new setup script name for Node.js v0.12
 curl -sL https://deb.nodesource.com/setup_0.12 | sudo bash -
 
 # Then install with:
 sudo apt-get install -y nodejs