查找数组中的匹配元素SWIFT 3

Question

我有两个数组填充字符串，希望能够识别两个数组中的匹配字符串。例如。

var ArrayOne = ["Dog", "Cat", "Chicken"] 
var Array Two = ["Dog", "Elephant", "Chicken", "Sheep"] 

我想要的结果是提前

Answer 1

var ArrayOne = ["Dog", "Cat", "Chicken"] 
var ArrayTwo = ["Dog", "Elephant", "Chicken", "Sheep"] 

var ArrayThree = [String]() 
for animal in ArrayOne { 
    if ArrayTwo.contains(animal) { 
     ArrayThree.append(animal) 
    } 
}