index and element swift code example

Example 1: How to find index of list item in Swift?

let arr = ["a","b","c","a"]

let indexOfA = arr.firstIndex(of: "a") // 0
let indexOfB = arr.lastIndex(of: "a") // 3

Example 2: swift for loop index

for (index, object) in list.enumerated() {
  print("Item at \(index): \(object)")
}