Medium Blog Post Code Snippet

HelperMethods.swift

/// Adds a new listener to the listeners array
///
/// - parameter delegate: a new listener
func addListener(listener: NetworkStatusListener){
    listeners.append(listener)
}

/// Removes a listener from listeners array
///
/// - parameter delegate: the listener which is to be removed
func removeListener(listener: NetworkStatusListener){
    listeners = listeners.filter{ $0 !== listener}
}