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An optional is the compiler telling me to check for nulls. My program won't compile if I don't check for nulls. IDE support is half baked, someone can always t
by nemothekid 6y ago
An optional is the compiler telling me to check for nulls. My program won't compile if I don't check for nulls.
IDE support is half baked, someone can always turn it off.
- nurettin 6y agoThis doesn't sound right. Could you paste an example of a misuse of optional (for example: an unchecked unwrap) causing a compilation failure instead of a panic?
- jpttsn 6y agoIn Swift `let x = things.first` won't compile but `let x = things.first ?? "empty"` and `let x = things.first!` will. Does that count? (Probably mangled the Swift, doing this from memory)
- nurettin 6y agoMy swift isn't good, but since you didn't specify a type for x, I think it should compile anyway. But if things is an empty array of T, first may return nil and x will be of type T?. If things is an array of optional, x will be of type T??