   ///
   /// - Returns: The swap cased copy of the `String`.
   public func swapCased() -> String {
-    return self.map({
-      String($0).isLowercased ? String($0).uppercased() : String($0).lowercased()
-    }).joined()
+    return map( {String($0).isLowercased ? String($0).uppercased() : String($0).lowercased()} ).joined()
   }
 
 }

  ///
  /// - Returns: The slug copy of the `String`.
  public func slugCased() -> String {
    return self.replacingOccurrences(of: "_", with: " ").replacingOccurrences(of: "-", with: " ").condensingExcessiveSpaces().replacingOccurrences(of: " ", with: "-").lowercased()
  }

  /// **Mechanica**

    guard maxLength > 0 else {
      return ""
    }
    return String(suffix(maxLength))
  }

  /// **Mechanica**
