[gb]

PureScript isn't just for business logic at all - it has its own UI libraries, React bindings, DOM API bindings, and so on. It is more often used for front-ends than anything else that I've seen.

You only need to use one of spago or bower (spago being the recommended choice now), and that's because npm style dependencies are not suitable for PS.

As for why you'd choose it over TypeScript... well, you'd do so if you want to use a functional language that doesn't allow arbitrary effects and has a sound type system.

[christiansakai]

I haven't actually checked more on PureScript and about the UI libraries and so, I'll try to dig more.

[nikitaga]

Halogen is a popular one https://purescript-halogen.github.io/purescript-halogen/