EnumeratedForEach

EnumeratedForEach.swift

import SwiftUI

/// An extension of ForEach that enables lookup of an array offset parameter in its ViewBuilder closure, in addition to the standard element returned.
extension ForEach where Data: RandomAccessCollection, Data.Element: Hashable, ID == Data.Element, Content: View {
    init(_ values: Data?, @ViewBuilder content: @escaping (Data.Index, Data.Element) -> Content) {
        self.init(values ?? ([Data.Element]() as! Data), id: \.self) { c in
            content(values?.firstIndex(of:c)! ?? ([Data.Element]() as! Data).indices.first!, c)
        }
    }
}