Installing Node.js Tutorial: Using nvm

As with any programming language, platform, or tool, the first step to using it is getting it installed. Many of them typically come with a speedy way to upgrade when a new version is available.
By default, there’s not a way to upgrade the version of Node.js you’ve got from within Node.js itself. That said, there’s a fantastic tool for the community called nvm that allows you to manage the versions of Node.js that you’ve got installed locally.