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  • MICHAEL MASLENKO thinks this is interesting:

Unlike Java, Kotlin has proper function types. Because of that, Kotlin functions that need to take lambdas as parameters should use function types, not functional interface types, as the types of those parameters. Automatic conversion of lambdas to objects implementing Kotlin interfaces isn’t supported. We’ll discuss the use of function types in function declarations in


Cover of Kotlin in Action


7 R? I didn't get that