[Swift5] 문자열에 대한 라인수 구하기

let message = "abcdefg\n1234567\n가나다라마바사\nABCDEFG"

let line = message.reduce(into: 0) { (count,letter) in

    if letter == "\n" {

        count += 1

    }

}

 

print(line)

 

https://stackoverflow.com/questions/46490920/count-the-number-of-lines-in-a-swift-string