There is apparently already a 'formula' field. When you type the 'Set formula' command on a field, it's value become a computed value build from the result of the functions that you added in this field.
I coulnd't find any documentation about that feature. I just found some functions like: sum, average, min, max,... and I only managed to add 'hardcoded' values as parameters to these functions. What we need now is to be able to add the value of another field instead of hardcoded values. There is maybe a way to do so but I couldn't find how....
hello I can't find that command? Could you tell me how to find it?
It looks like Tana does support more than simple fixed values via the "formula" method @Julien France pointed out; I did a bit more poking and was able to get some more out of it:
https://ktemk.in/post/tana-formulae/
Things formulas can do, from what I'm looking at, while live updating:
findInstance,filter, andlookup)... and that's about it. There doesn't seem to be a way to get a substring, or choose based on conditions, or anything like that.
edit: now, if there was the ability to specify an arbitrary javascript function to run instead of these preselected few, that would be