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iOS Functions in Swift Adding Power to Functions Returning Complex Values

Posted by Shanequa Bond
Shanequa Bond
18,447 Points

Can someone help me please?

Challenge Task 1 of 1

In this challenge, we have the following geographical coordinates

Eiffel Tower - lat: 48.8582, lon: 2.2945 Great Pyramid - lat: 29.9792, lon: 31.1344 Sydney Opera House - lat: 33.8587, lon: 151.2140

Declare a function named coordinates that takes a single parameter of type String, with an external name for, a local name of location, and returns a tuple containing two Double values (Note: You do not have to name the return values). For example, if I use your function and pass in the string "Eiffel Tower" as an argument, I should get (48.8582, 2.2945) as the value. If a string is passed in that doesn’t match the set above, return (0,0)

functions.swift 
// Enter your code below
func coordinates (for location : String) -> (Double, Double){
eiffelTower - lat = 48.8582, lon = 2.2945;
greatPyramid - lat = 29.9792, lon = 31.1344; 
sydneyOpera House - lat = 33.8587, lon = 151.2140;
}
var loc = coordinates (for : "eiffelTower")

1 Answer

Nichlas Kondrup
Nichlas Kondrup
17,748 Points
Nichlas Kondrup
Nichlas Kondrup
17,748 Points

You can use a switch statement on the location parameter which returns a tuple of doubles

// Enter your code below

func coordinates(for location: String) -> (Double, Double) {
  switch location {
      case "Eiffel Tower": return (48.8582,2.2945)
      case "Great Pyramid": return (29.9792,31.1344)
      case "Sydney Opera House": return (33.8587,151.2140)
      default: return (0,0)

  }
}