Unique Objects inside a Array Swift

Question

I have an array, with custom objects.

I Would like to pop the repeated objects, with the repeated properties:

let product = Product()
product.subCategory         


        

Answer 1

If your class conforms to protocol Hashable and you would like to keep the original array order you can create an extension as follow:

extension Array where Element: Hashable {
    var uniqueElements: [Element] {
        var elements: [Element] = []
        for element in self {
            if let _ = elements.indexOf(element) {
                print("item found")
            } else {
                print("item not found, add it")
                elements.append(element)
            }
        }
        return elements
    }
}