如果我有 utils 方法或扩展,如何使这段代码更好?

How to make this code nicer should I have utils method or extension?

所以这个 getLocalizedTitle() 函数我有这 3 种类型的 类,我应该有 utils 并将标题传递给这个函数还是可以有更好的扩展解决方案?

data class Carousel(val id: String, val titles: List<Title>) : ContentItem()
 data class HeroBanner(val titles: List<Title>,
                        val descriptions: List<Description>,
                        val images: List<Image>, val id: String) : ContentItem() 
}


data class MenuItem(val type: String, val titles: List<Title>, val actionType: String, val pageComponents: List<PageComponent>) :



    fun getLocalizedTitle(locale: String): Title? {
      val titles = titles.filter { it.locale == locale }
      return if (titles.isNotEmpty()) {
        titles[0]
      } else {
        null
      }
    }

您可以创建一个扩展函数:

fun List<Title>.localized(locale: String): Title? =
     firstOrNull { it.locale == locale }