Comment by cosmic_cheese

Part of it is solved by how longer files are much more readable in imperative setups and can benefit from things like an editor/IDE being more able to jump around within the file since it’s not a big tangled up deeply nested chunk and developers can add things like titled section dividers for the editor to latch onto.

And no language will fix all these woes on its own, but problems take a lot longer to crop up with a disciplined team in an imperative app compared with a declarative one.

FP probably does scale better when we’re talking about the nuts and bolts under the hood, but I don’t believe it’s well suited for UI except in the simplest of cases. There’s too much in that domain that’s at odds with the nature of a declarative/functional approach.