What is another custom number or word for block, other than block id?

I want to display several sliders on one page, and for JS settings I need to print some unique value for each block. Can’t use block id in this case, as need something without “-”

There is nothing, but you could remove the dashes from the id?

I see. Also thought about removing the dashed, probably the only solution in this case.

Yes, works fine, thanks!