Cracking the Strategy Design Pattern — Introduction Design Patterns that will be covered in this article: Strategy Strategy This design pattern defines a family of interchangeable objects that can be set or switched at runtime. Also, Strategy is categorized under Behavioral patterns because the Strategy pattern is ultimately about 1 object using another to do something. This pattern…

Cracking the Delegation Design Pattern — Introduction Design Patterns that will be covered in this article: Delegation Delegation This pattern enables an object to use another helper object to either: Provide data 2. Perform a task rather than do the task itself There are 3 parts to the delegation pattern An object needing a delegate (a.k.a …

Cracking the ModelViewController Design Pattern — Introduction Design Patterns that will be covered in this article: Model-View-Controller Model-View-Controller The MVC pattern simply is broken down into 3 main parts: Model — Models hold onto application data (typically in the form of structs or simple classes) View — Views communicate to their controller via IBActions View Controller — Controllers coordinate between models and views

An introduction to core iOS design patterns — Design Patterns Definition Design patterns can be interpreted as reusable solutions to development problems, or best-practice tools that are used to solve commonly recurring problems. Analogy Let’s say you wanted to build a house from scratch. There are many elements or factors you need to consider before building a house such as precise measurements…

Introduction In case if you haven’t yet, join my Discord server! I’m looking to create a community of developers so we can reinforce, motivate, and get to know each other in our programming journey. Discord If you have any questions or comments, please don’t feel afraid to ask or connect with…

Given two non-empty arrays of integers, our goal is to write a function that establishes whether the second array is a valid subsequence of the first array. A valid subsequence of an array is classified as a set of numbers that aren’t necessarily adjacent in the array but are in…

In this project, I will cover the following topics: Table Views Image Views App Bundles FileManager Typecasting View Controllers Storyboards Outlets Auto Layout UIImage Building your Project The organization identifier is a unique identifier usually made up of your personal website domain name in reverse (i.e. com.example). After you create a project, you…

LeetCode: Problem #1 — Two Number Sum Given a non-empty array containing unique integers and a target sum, you have to write a function that should return an array containing any two unique numbers from the input array; however, if there are no pair of numbers that sum up to…

If you haven’t checked out Day 2 in the journey, you can check that out right here. Polymorphism and Typecasting The concept of polymorphism is that any instance of a subclass is inherited from its superclass can be treated just as either a subclass or its superclass — it’s essentially…