It doesn't take 2 weeks to set up an app in a language with a big community of developers, well maintained libraries and at least decent documentation. It probably takes a day or 2. Maybe a bit more if you are venturing into a new ecosystem like switching from Java backends to a node.js backend.
I loved learning Haskell in university. It's an interesting language. I came into intro CS class thinking I could already program & the class would just be about sharpening my axe. Then my intro CS class started with Haskell which threw my brain for a loop and made me think about programming completely differently. That was a great intellectual experience and good for my long term thinking.
Haskell also seems like an incredibly impractical choice for a production language that only a stubborn purist would make. Of course the last bit is purely opinion, your experience may vary.
I loved learning Haskell in university. It's an interesting language. I came into intro CS class thinking I could already program & the class would just be about sharpening my axe. Then my intro CS class started with Haskell which threw my brain for a loop and made me think about programming completely differently. That was a great intellectual experience and good for my long term thinking.
Haskell also seems like an incredibly impractical choice for a production language that only a stubborn purist would make. Of course the last bit is purely opinion, your experience may vary.