%dw 2.0
output application/json

var someDates = [
  "Jun 11, 2018",
  "Sep 11, 2017",
  "Jul 11, 2018",
  "Sep 21, 2017",
  "2018-01-20T00:00:00",
  "2018-01-25T00:00:00",
  "2018-01-20T00:00:00",
  "2018/07/11",
  "2018/08/11"
]

type Scientific = String {format: "yyyy-MM-dd"}
type USDate = String {format: "MMM dd, yyyy"}
type WorldDate = String {format: "dd-MM-yyyy"}
type Chosen = WorldDate

fun normalizeDate (d: String) = d

---
someDates map normalizeDate($)