This Swift code contains one error – can you select the line that is incorrect?
Tip: You should mentally run the code from top to bottom, meaning that if line 3 says an integer should be returned and line 10 tries to return a string, line 10 is the wrong one.
func driveCar(distance: Int, destination: String) -> String {
var str: Int = "I'm going to \(destination)\n"
str += "Distance is \(distance)km"
return str
}
print(driveCar(distance: 7, destination: "London"))
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