<@U0AK89KT6>: In a nutshell, lenses are functional...
# language-proposals
@jkbbwr: In a nutshell, lenses are functional setters: you can set values deep into objects while retaining composition and immutability. You can look at them as an extension of the
methods that Kotlin’s
classes expose. To be honest, I don’t think lenses are that interesting beyond Haskell but if you’re interested in functional concepts, they’re worth a look.