Tag: Liskov Substitution Principle

May 11, 2019 / Clean code

The Liskov Substitution Principle, introduced by Barbara Liskov, represents the “L” in SOLID. It states that every implementation of a class should be replaceable with an implementation of any class that extends it. In other words, every instance of a parent class should be replaceable by any instance of its child classes so that the application continues to work.