ubuntu1804安装jupyter中的js环境

参考：
https://github.com/n-riesco/ijavascript

http://n-riesco.github.io/ijavascript/#installation

https://github.com/n-riesco/ijavascript/issues/241

https://www.tomche.space/post/using-javascript-kernel-in-vscode-jupyter-notebooks/

https://www.tomche.space/post/using-javascript-kernel-in-vscode-jupyter-notebooks/

https://anaconda.org/javascript/repo?type=conda&label=main

https://www.npmjs.com/package/node-gyp

sudo apt-get install nodejs npm jupyter
npm config set prefix $HOME
npm install -g ijavascript
ijsinstall

特别注意： if ~/bin folder didn’t exist before, after running this instructions, you may need to log out and back in for ~/bin to be added to your PATH.
也就是需要环境变量。如果~/bin不太好用，或者报错ijsinstall找不到命令，可以使用如下命令：

sudo ln -s ~/bin/ijsconsole /usr/bin/ijsconsole
sudo ln -s ~/bin/ijsinstall /usr/bin/ijsinstall
sudo ln -s ~/bin/ijskernel /usr/bin/ijskernel
sudo ln -s ~/bin/ijsnotebook /usr/bin/ijsnotebook
sudo ln -s ~/bin/node-gyp /usr/bin/node-gyp

如果报错没有0.1版本的gyp，可以安装node-gyp

npm install gyp@0.1

同时记得设置镜像源

npm config set registry http://registry.npm.taobao.org/
npm config get registry