Huzzah!
I can not overstate my appreciation to Ian Rose for finally allowing me to switch to JupyterLab as my primary interface to Jupyter Notebooks. I tried before but always returned to the old interface due to the fact that I heavily rely on headings to navigate my notebooks as I develop them. My notebooks are usually pretty long and complex so the lack of a “navigation” system really impedes my productivity.
But no longer, thanks to jupyterlab-toc!
To install the extension run the following command:
$ jupyter labextension install jupyterlab-toc
When you restart your jupyterlab server, you will have a new sidebar tab named “Contents” which will open what you see below.