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Book Overview & Buying
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Table Of Contents
Clean Code with TypeScript
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Polymorphism, meaning many forms, allows objects of different classes to respond to the same method call in unique ways, making code more flexible and adaptable. For example, a draw() method defined in a base class, Shape, can be customized by subclasses such as Circle, Rectangle, and Triangle. Calling draw() on each object will execute the appropriate version for its type, enabling different behaviors from a single method call.
There are two main ways to achieve polymorphism in TypeScript: method overriding and interfaces. Let's look at these two approaches in more detail.
Method overriding is a key aspect of polymorphism in TypeScript. It allows you to define a method in a base class and then override it in child classes to provide a more specific implementation. This enables you to write more generic code that can work with different classes.
To implement method overriding in TypeScript, follow these steps: