Show code line numbers in JupyterLab

Question

In Jupyter notebook, cntrl+ m L toggles code line numbers in current cell but how to bring the code line numbers in JupyterLab?

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Answer 1

Late reply, but it'll still help others!

For Windows users, just hit Shift + L

Answer 2

You can go to View -> Show Line Numbers:

which will display line numbers in the notebook:

Answer 3

https://github.com/jupyterlab/jupyterlab/issues/2395 - Shift+L toggles line number visibility.

Answer 4

you can turn this on by default by going into Settings --> Advanced Settings Editor:

As you can see from the screenshot, you can edit other features as well and easily set them back to default by deleting your 'User Overrides'