string array to string for Dayz iOS

.swift

let mapStr = ["test"].reduce("", +)
mapStr
let mapStr2 = ["test"].joined()
mapStr2
let mapStr3 = ["test"].joined(separator: "")
mapStr3

extension String {
  func removeDayzSearchCountSuffix() -> String {
    if self.trimmingCharacters(in: .whitespacesAndNewlines).components(separatedBy: " (").count > 1 {
      return self
        .trimmingCharacters(in: .whitespacesAndNewlines)
        .components(separatedBy: " (")
        .dropLast()
        .reduce("", +)
    } else {
      if self.last == " " {
        return String(self.dropLast())
      } else {
        return self
      }
    }
  }
}

let result3 = "audio ".removeSuffixSearchCountString()
result3