$ sudo raspi-config
Choose Internationalisation Options to change timezone
$ sudo raspi-cofig
Select "Interfacing something", then activate ssh
$ ifconfig wlan0
$ ifconfig -a
Open Mac's Terminal
$ ssh pi@IP address
Password should be raspberry if you don't change the default.
Raspberry Pi3 has nodejs originally, but the version is 0.10.29 which is not LTS version and doesn't supprot some functions.
Install NVV
$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.1/install.sh | bash
$ source ~/.bashrc or close terminal and open it again
$ nvm -v
$ nvm ls-remote
$ nvm install 6.9.5