Prototype inheritance is a fundamental concept in JavaScript, which is the language that Node.js is built on.
In JavaScript, each object has a prototype object that acts as a template from which it inherits properties and methods. This means that you can define a method or property once on the prototype, and then all objects that inherit from that prototype can access that function or property.
Prototype inheritance allows you to create a hierarchy of objects that inherit properties and methods from one another, allowing for code reusability and modularity. It is different from class-based inheritance in other languages, as it’s more dynamic and flexible.