[dmitriid]

Mostly, no. Usually it all comes down to understanding and implementing business requirements correctly. Implementing those is a somewhat straightforward (also tedious) process in any language.

The main inpediment in my opinion is:

- knowing the standard library

- knowing the available libraries

- syntax quirks

in that order.

The main advantages you gain from using a language is familiarity with a language and the three points above.

I will be much more productive in JS or Python than in Haskell just because I’m already familiar with thise two and I’m not familiar with Haskell.

The rest of advantages come from the ability of a language to express a programmer’s thoughts rwadably, concisely and in a maintainable manner (where “maintainable” means “a new colleague coming in to the project six months later”).