Don't have yum?
Documentation by IBM on how to install the yum opensource package manager to an IBM i can be found here.
Installing Node.js with yum Package Manager
If yum is properly set up on your system, you can install Node.js by running the following command in a PASE shell:
If you would like to install a different version of Node.js, you can simply replace nodejs12 with the correct version in the command.