check0

gistfile1.swift

let numArray:[Int?] = [60, 70, 90, nil, 90, 0, 80, 80, 0, 80]

check()
func check() {
    for (i, v) in numArray.enumerated() {
        if ((numArray.firstIndex(where: { _ in 0 != v && v != nil })) != nil) {
            print("インデックス: \(i)")
        }
    }
}

extension Array where Element: Equatable {
    func checkArray(value: [Element]) -> Bool{
        var flg = false
        value.forEach { v in
            if (self.firstIndex(of: v) != nil) {
                flg = true
            }
        }
        return flg
    }
}

var b = [11,22]

a ()
func a (){
    print(b.checkArray(value: [111,22,333])) // true
}