A protocol to be used to avoid hardcoding of reuse identifier

Reusable.swift

protocol Reusable: class {
    static var reuseIdentifier: String { get }
}

extension Reusable {
    static var reuseIdentifier: String {
        // I like to use the class's name as an identifier
        // so this makes a decent default value.
        return String(describing: self)
    }
}

// Uncomment for Global Confirmance
// extension UITableViewCell: Reusable { }