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lift/unlift scala feature / published by https://github.com/dacr/code-examples-manager #3d4c01e1-0654-4485-b77d-0b393eee934a/4605949ef57f540166ac76f1974cb8e1f890341e
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// summary : lift/unlift scala feature | |
// keywords : scala, language-feature, lift, unlift, @testable | |
// publish : gist | |
// authors : David Crosson | |
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2) | |
// id : 3d4c01e1-0654-4485-b77d-0b393eee934a | |
// created-on : 2022-06-15T20:39:26+02:00 | |
// managed-by : https://github.com/dacr/code-examples-manager | |
// run-with : scala-cli $file | |
// --------------------- | |
//> using scala "3.1.2" | |
// --------------------- | |
val accesserA = Array(1,2,3).lift | |
assert(accesserA(1) == Some(2)) | |
val accesserM = Map(1->"a", 2->"b").lift | |
assert(accesserM(1) == Some("a")) | |
def f(i:Int)=Some(i) | |
val ua = Function.unlift(f) | |
ua(42) |
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