How to convert NSNull to nil in Swift?

Question

I want to fetch JSON data from my server and manipulate it upon launch. In Objective-C, I have used this #define code to convert NSNull to ni

Answer 1

This could be what you are looking for:

func nullToNil(value : Any?) -> Any? {
    if value is NSNull {
        return nil
    } else {
        return value
    }
}

people.age = nullToNil(peopleDict["age"])

Answer 2

I would recommend, instead of using a custom conversion function, just to cast the value using as?:

people.age = peopleDict["age"] as? Int

If the value is NSNull, the as? cast will fail and return nil.