[Swift3] 配列を文字列で連結したい。

投稿：2017年04月09日

var arr = Array<String>()
arr[0] = "A"
arr[1] = "B"
arr[2] = "C"
let str = arr.joined(separator: ",")

var arr = Array<String>()

arr[0] = "A"

arr[1] = "B"

arr[2] = "C"

let str = arr.joined(separator: ",")