Hi there,
I was wondering if the community would like Swift to have a switch statement
with optional binding.
Take this simple dictionary as an example:
let cityIDs = ["Paris": 1, "London": 2]
Currently, this is how things are done if parisCityID is used only once within
an if-let statement for only a switch statement:
if let parisCityID = cityIDs["Paris"] {
switch parisCityID {
case 0..<10:
print("Paris city ID: \(parisCityID)")
default:
break
}
}
And here is the proposed switch statement with optional binding:
switch let parisCityID = cityIDs["Paris"] {
case 0..<10:
print("Paris city ID: \(parisCityID)")
default:
break
}
With var:
switch var parisCityID = cityIDs["Paris"] {
case 0..<10:
parisCityID += 2 // just to demonstrate var
print("Paris city ID: \(parisCityID)")
default:
break
}
Feedback welcomed!_______________________________________________
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