String extension to localize more easy way

String+Localization.swift

extension String {

  var localized: String {
    return NSLocalizedString(self, comment: "\(self)_comment")
  }
  
  func localized(_ args: [CVarArg]) -> String {
    return localized(args)
  }
  
  func localized(_ args: CVarArg...) -> String {
    return String(format: localized, args)
  }
}

/// How to use
// "hello".localized
// "hello %@! you are %d years old".localized("Mike", 25)
// "hello %@! you are %d years old".localized(["Mike", 25])

What do you do with the Xcode warning "All paths through this function will call itself"?

In order to deal with recursion warning from Xcode, I made a quik fix

import Foundation

extension String {

var localized: String {
    return NSLocalizedString(self, comment: "\(self)_comment")
}

func localized(_ args: [CVarArg]) -> String {
    return String(format: localized, args)
}

func localized(_ args: CVarArg...) -> String {
    return String(format: localized, args)
}

}