homebrewを入れたあとの作業

brew install nodebrew 
mkdir -p ~/.nodebrew/src
nodebrew install-binary v15.5.1
nodebrew use v15.5.1
echo 'export PATH=$HOME/.nodebrew/current/bin:$PATH' >> ~/.bash_profile
conda install nodejs
jupyter nbextension enable --py --sys-prefix widgetsnbextension
jupyter labextension install ipyvolume
jupyter labextension install @jupyter-widgets/jupyterlab-manager@1.1 

なんかいつもnode.jsが入っていない…

参考

https://qiita.com/kyosuke5_20/items/c5f68fc9d89b84c0df09

https://qiita.com/iwashi-kun/items/eac8438548de82d25fd1