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Unison | A friendly, statically-typed, functional programming language from the future · Unison programming language (www.unison-lang.org)

submitted 10 months ago by [email protected] to c/[email protected]

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A friendly programming language from the future.

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[–] [email protected] 7 points 10 months ago* (last edited 10 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