Haskell is a standardized, general-purpose purely functional programming language, with non-strict semantics and strong static typing.
License: Open Source
Dart is primarily geared towards mobile and web development, emphasizing ease of use and asynchronous programming, while Haskell is a purely functional language that excels in mathematical computing and concurrent programming. Dart offers a more approachable learning curve, whereas Haskell provides powerful abstractions at the cost of a steeper learning curve.