Wikifiable: enables getting rid of the boilerplate code in an escaping closure where there is a repeated code [weak self] ( Credit: Vincent Pradeilles)

Wikifiable.swift

protocol Weakifiable where Self: class {}

extension NSObject: Weakifiable {}

extension Weakifiable {
  func weakify<T>(_ code: @escaping (Self, T) -> Void) -> (T) -> Void {
    {
      [weak self] (data) in 
      
      guard let self = self else { return }
      
      code(self, data
    }
  }
}
// Ref: https://www.youtube.com/watch?v=BGzPK7f13RM