Strings in Switch Statements: 'String' does not conform to protocol 'IntervalType'

Question

I am having problems using strings in switch statements in Swift.

I have a dictionary called opts which is declared as

Answer 1

This error is shown when an optional is used in a switch statement. Simply unwrap the variable and everything should work.

switch opts["type"]! {
  case "abc":
    println("Type is abc")
  case "def":
    println("Type is def")
  default:
    println("Type is something else")
}

Edit: In case you don't want to do a forced unwrapping of the optional, you can use guard. Reference: Control Flow: Early Exit