Swift - forEach

 

forEach(_:)

Calls the given closure on each element in the sequence in the same order as a for-inloop.

 

for-in과 동일하게 사용하는 고차함수 

let numberWords = ["one", "two", "three"]
for word in numberWords {
    print(word)
}
// Prints "one"
// Prints "two"
// Prints "three"

numberWords.forEach { word in
    print(word)
}
// 위와 출력되는 값이 동일하다.
// Prints "one"
// Prints "two"
// Prints "three"