ios - 如何在 Swift 中过滤字符串数组

Question

通过使用 objective C 我可以使用 NSPredicate 过滤年份数组，

下面是代码。

  yearArray = [yearArray filteredArrayUsingPredicate:[NSPredicate
  predicateWithFormat:@"SELF != ''"]];

按照上面的代码，它在 objective-c 中工作正常，我必须在 Swift 3 中过滤数组，

什么是输入年份数组:-

( Year,"","","",JAN,"","","",FEB,"","","",MAR,"","","",APR,"","","",
  MAY,"","","",JUN,"","","",JUL,"","","",AUG,"","","",SEP,"","","",OCT
  ,"","","", NOV,"","","",DEC,"","","","",WIN,"","","",SPR,"","","",SUM
  ,"","","",AUT,"","","","",ANN)

需要过滤输出数组

(Year,JAN,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,OCT,NOV,DEC,WIN,SPR,SUM,AUT,ANN)

请给出如何在 swift 中过滤数组的解决方案。

Answer 1

使用这段代码:

let yearArray: [String] = ... // your array of type [String]

let filteredArray = yearArray.filter {
    !$0.isEmpty
}

看图输出: