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A null doesn't contain any information about what went wrong and unless you religiously check your objects for null values at every turn you just turned a clear
by josefx 5y ago
A null doesn't contain any information about what went wrong and unless you religiously check your objects for null values at every turn you just turned a clear stack trace into a search for waldo at the international waldo impersonators meetup.
- dthul 5y agoNote that in Kotlin the return type is `Int?`, not `Int`. You can't forget to check for null because the compiler enforces it. To your first point: Another example in the design space would be Rust which works very similarly to Kotlin but returns more information in the failure case.
- zvrba 5y ago> Note that in Kotlin the return type is `Int?`, not `Int`. How does that fare with unnecessary boxing of primitives?