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Mastering Prototypes: Crafting Powerful Interfaces in JavaScript

Unlock the Potential of Prototypes to Define Robust Interfaces

Max N
3 min readApr 5, 2024

In the ever-evolving world of JavaScript, understanding the power of prototypes is crucial for crafting scalable and maintainable code. Prototypes provide a flexible mechanism for defining interfaces, allowing you to encapsulate shared behavior and properties across objects.

In this article, we’ll explore how to leverage prototypes to implement interfaces, equipping you with the knowledge to build more robust and modular applications.

Defining an Interface with Prototypes

Let’s start by defining a simple interface for a Vehicle object. We'll use a constructor function to create our Vehicle objects, and then add shared methods and properties to the prototype:

function Vehicle(make, model) {
this.make = make;
this.model = model;
}

Vehicle.prototype.start = function() {
console.log(`Starting the ${this.make} ${this.model}.`);
};

Vehicle.prototype.stop = function() {
console.log(`Stopping the ${this.make} ${this.model}.`);
};

In this example, the Vehicle constructor function defines the basic properties of a vehicle, while the start() and stop() methods are added to the…

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Max N
Max N

Written by Max N

A writer that writes about JavaScript and Python to beginners. If you find my articles helpful, feel free to follow.

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