How to install node.js on macOS with nodebrew.

Install Homebrew

See below:
Homebrew(official)

Install nodebrew

After you installed Homebrew, you should execute below

brew install nodebrew

If you want to check whether you could get it or not, please type this command.

nodebrew -v

and you can see the version of your nodebrew.

nodebrew 0.9.8

Usage:
    nodebrew help                         Show this message
    nodebrew install <version>            Download and install <version> (compile from source)
    nodebrew install-binary <version>     Download and install <version> (binary file)
    nodebrew uninstall <version>          Uninstall <version>
    nodebrew use <version>                Use <version>
    nodebrew list                         List installed versions
    nodebrew ls                           Alias for `list`
    nodebrew ls-remote                    List remote versions
    nodebrew ls-all                       List remote and installed versions
    nodebrew alias <key> <value>          Set alias
    nodebrew unalias <key>                Remove alias
    nodebrew clean <version> | all        Remove source file
    nodebrew selfupdate                   Update nodebrew
    nodebrew migrate-package <version>    Install global NPM packages contained in <version> to current version
    nodebrew exec <version> -- <command>  Execute <command> using specified <version>

Example:
    # install from binary
    nodebrew install-binary v0.10.22

    # use a specific version number
    nodebrew use v0.10.22

    # io.js
    nodebrew install-binary io@v1.0.0
    nodebrew use io@v1.0.0

After you installed nodebrew, I recommend you to add the PATH of nodebrew to your .bash_profile.

echo 'export PATH=$PATH:$HOME/.nodebrew/current/bin' >> ~/.bash_profile

Install node.js

Before you install node.js, check the latest version of node.js on official website.
node.js official website
You might find out 2 or more versions of node.js.
I recommend you to install LTS(Long Term Support) version.

If you decided the version, type below and you can see all versions you can install.

nodebrew ls-remote

Can you find out the version you want? O.K. Let's install it.

nodebrew install-binary <THE-VERSION-YOU-WANT>

Please replace the to the version you want to install.

If you get error like below,

Warning: Failed to create the file 
Warning: /Users/<YOUR-USER-NAME>/.nodebrew/src/v8.9.3/node-v8.9.3-darwin-x64.tar.gz: No 
Warning: such file or directory

Make the folder which is needed with this command.

mkdir -p ~/.nodebrew/src

and retry nodebrew install-binary <THE-VERSION-YOU-WANT>

Launch node.js

Before launching node.js, check the nodebrew.

nodebrew ls

You can get like below:

v8.9.3

current: none

This is the list of node.js versions you have and current node.js version.
The line current: none means your system haven't set the node.js.
So, type this

nodebrew use <THE-VERSION-YOU-WANT>

After that, please execute this

node -v

If you could set node.js appropriately, you can get the return about the node.js version like below.

v8.9.3

That's all! Now you can build amazing project with node.js!