this post was submitted on 16 Dec 2023
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Programming

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Unison | A friendly, statically-typed, functional programming language from the future · Unison programming language (www.unison-lang.org)
submitted 11 months ago by starman@programming.dev to c/programming@programming.dev
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A friendly programming language from the future.

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[–] robinm@programming.dev 7 points 11 months ago* (last edited 11 months ago)

There take on what they call capabitilites is very interesting. Basically anything that would make a function non-pure seems to be declared explicitely.

A computational effect or an "effectful" computation is one which relies on or changes elements that are outside of its immediate environment. Some examples of effectful actions that a function might take are:

  • writing to a database
  • throwing an exception
  • making a network call
  • getting a random number
  • altering a global variable