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partial function scala feature / published by https://github.com/dacr/code-examples-manager #dfb0a855-dab3-4ec8-bb54-cfbfb52e9687/5e730aec81b7b5af59a0a863071eabe1e9699695
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| // summary : partial function scala feature | |
| // keywords : scala, language-feature, partial-function, isDefinedAt, @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 : dfb0a855-dab3-4ec8-bb54-cfbfb52e9687 | |
| // created-on : 2022-06-15T20:54:56+02:00 | |
| // managed-by : https://github.com/dacr/code-examples-manager | |
| // run-with : scala-cli $file | |
| // --------------------- | |
| //> using scala "3.4.2" | |
| // --------------------- | |
| val pf:PartialFunction[Any, String] = | |
| case _:Int => "OK" | |
| case 1L => "ok" | |
| assert(pf.isDefinedAt("42") == false) | |
| assert(pf.isDefinedAt(42) == true) | |
| println(pf.apply(42)) | |
| println(pf(42)) | |
| val pf2:Any=>String = // NOT EXACTLY A PARTIAL FUNCTION IN PF2 !!!! | |
| case _:Int => "OK" | |
| case 1L => "ok" | |
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