Swift Programming Tutorial: Polymorphism and Typecasting
Understand Polymorphism and Typecasting in Just a Few Minutes.
Polymorphism and typecasting were two concepts I initially found hard to grasp because they sounded like big, technical terms. However, they’re really about making your code more flexible and efficient. Think of polymorphism as a way to handle different types of objects in a simple, unified manner — like giving your code the ability to adapt and grow without requiring much extra work. Typecasting, on the other hand, allows you to fine-tune your approach by determining the exact type of an object when needed, enabling you to perform specific tasks with it.
This article is part of my Swift Programming Tutorial series.
Before you proceed, let me stop you to point out that you first need to understand the concept of object-oriented programming, as well as protocols, since these concepts are central to it.
If you’re good, then let’s proceed.
Polymorphism
Polymorphism is a fancy term that comes from Greek words meaning “many forms.” In programming, it allows objects to be treated as instances of their parent class rather than their actual class. This means a single function can work with different types in a unified…
