How can I find the index of an item in Swift? [duplicate]

Answer 1

An extension of Array can work wonders here. Here's an implementation shared in this StackOverflow answer:

extension Array {
  func find (includedElement: T -> Bool) -> Int? {
    for (idx, element) in enumerate(self) {
      if includedElement(element) {
        return idx
      }
    }
    return nil
  }
}