Sort array by calculated distance in Swift

Question

So I have an array of custom objects which have a Double latitude and Double longitude value. I would like to sort the array based on the calculated distance from a specific

Answer 1

Thats quite easy to do. Your function which calculate the distance must take two parameter of type what is in your array you want to sort and return Bool, for example:

// I assumed your array stores MyLocation
func mySortFunc(location1: MyLocation, location2: MyLocation) -> Bool {

    // do your calculation here and return true or false
}

var array: [MyLocation] = ...
array.sortInPlace { (loc1, loc2) -> Bool in
    mySortFunc(loc1, location2: loc1)
}