List

• UIKit UITableView과 유사
• ForEach와 주로 함께 사용
• ForEach의 3가지 사용 방법

1. ForEach(_ data: id: content:)

struct LocationInfo: Hashable {
    var city = ""
    var weather = ""
}
...
List() {
    ForEach(locations, id:\.self) { location in
        HStack {
           Text("\(location.city)")
           Text("\(location.weather)")
        }
    }
}
...

• model: Hashable 필수
• \.self \.weather \.city 중 하나를 id로 설정 필요

2. ForEach(_ data: content:)

struct LocationInfo: Identifiable {
    var id = UUID()
    
    var city = ""
    var weather = ""
}
...
List() {
    ForEach(locations) { location in
        HStack {
            Text("\(location.city)")
            Text("\(location.weather)")
        }
    }
}
...

• model: Identifiable 필수
• 고유 ID 프로퍼티 필요 (UUID() 사용)

3. ForEach(_ data:Range<Int> content:)

struct LocationInfo {
    var city = ""
    var weather = ""
}
...
List() {
	ForEach( 0..<locations.count, id: \.self ) { row in
        HStack {
            Text("\(row + 1)")
            Text("\(locations[row].city)")
            Text("\(locations[row].weather)")
        }
    }
}
...