In the preceding subscript examples, all of the subscripts accepted integers as the value for the subscript; however, we are not limited to integers. In the following example, we will use a string type as the value for the subscript. The subscript will also return a string type:
struct Hello { subscript (name: String) ->String { return "Hello \(name)" } }
In this example, the subscript takes a string as the value within the subscript and returns a message saying Hello
. Let's see how to use this subscript:
var hello = Hello() println(hello["Jon"])
This example will display the message Hello Jon
to the console.