Created
December 8, 2020 23:38
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| fun test1(callback: (() -> Unit)? = null) { | |
| callback?.let { | |
| it() | |
| } | |
| } | |
| fun test2(callback: () -> Unit?) { | |
| callback() | |
| } | |
| fun main() { | |
| println(test1()) | |
| println(test2({ | |
| })) | |
| } |
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