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Mastering JavaScript Prototypes: A Comprehensive Guide

Unlock the Power of Prototypes in JavaScript with Easy-to-Understand Examples

Max N
2 min readApr 5, 2024

JavaScript is a versatile language that often confuses beginners with its unique features, and prototypes are no exception. Understanding prototypes is essential for mastering JavaScript’s object-oriented nature and unleashing its full potential in your code.

In this guide, we’ll delve into prototypes in JavaScript, breaking down the concept into simple terms and providing practical examples to solidify your understanding.

What are Prototypes?

In JavaScript, every object has a prototype, which acts as a template for that object. When you create an object, JavaScript automatically links it to its prototype. This linkage forms a chain, known as the prototype chain, which allows objects to inherit properties and methods from their prototypes.

Creating Prototypes

Let’s start by creating a prototype using constructor functions, a traditional method in JavaScript:

function Person(name, age) {
this.name = name;
this.age = age;
}

Person.prototype.sayHello = function() {
console.log(`Hello, my name is ${this.name} and I'm ${this.age} years old.`)…

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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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