Array+URLQueryItem.swift

extension Array where Element == URLQueryItem {

    func stringValue(for name: String) -> String? {
        let item = first { $0.name == name }
        return item?.value
    }

    func urlValue(for name: String) -> URL? {
        guard let string = stringValue(for: name) else { return nil }
        return URL(string: string)
    }

    func intValue(for name: String) -> Int? {
        guard let string = stringValue(for: name) else { return nil }
        return Int(string)
    }

    func boolValue(for name: String) -> Bool? {
        guard let string = stringValue(for: name) else { return nil }
        return Bool(string)
    }

}