jupyter - how to comment out cells?

Question

Is it possible to comment out whole cells in jupyter?

I need it for this case:

I have a lot of cells, and I want to run all of them, except for a few of them. I like it that my code is organized in different cells, but I don't want to go to each cell and comment out its lines. I prefer to somehow choose the cells I want to comment out, then comment them out in one go (so I could later easily uncomment them)

Thanks

Answer 1

Mark the content of the cell and press Ctrl+ /. It will comment out all lines in that cell. Repeat the same steps to uncomment the lines of your cell.

Answer 2

I think the easiest thing will be to change the cell type to 'Markdown' with M when you don't want to run it and change back to 'Code' with Y when you do. In a short test I did, I did not lose my formatting when switching back and forth.

I don't think you can select multiple cells at once.