如何在Swift中壓縮數組？

Question

let array1 = ["Albert","Bobby"] 
let array2 = ["Charles", "David"] 

如何合併兩個數組，這樣的出認沽將["Albert", "Charles", "Bobby", "David"]

Answer 1

您可以使用zip到你的兩個陣列組合，然後應用.flatMap到壓縮序列的元組元素：

let array1 = ["Albert","Bobby"] 
let array2 = ["Charles", "David"] 

let arrayMerged = zip(array1,array2).flatMap{ [$0.0, $0.1] } 

print(arrayMerged) // ["Albert", "Charles", "Bobby", "David"] 

Answer 2

這給了一槍

var a = ["one", "two"] 
    var b = ["three", "four"] 

    var c = a + b 
    print(c)