How can I write an empty case in Swift?
Solution 1:
let a = 50
switch a {
case 0..10:
break // Break the switch immediately
case 10..100:
println("between 10 and 100")
default:
println("100 and above")
}
Keyword break is optional, but not in this case :)
Solution 2:
To prevent the error:
Case label in a switch should have at least one executable statement
... use () in case label like in the following example. Also works with default label.
let a = 1
switch a {
case 1:
()
case 2:
println("2")
default:
()
}