what means prototype in javascript

Crafts from polymer clay with their own hands. A large selection of tips and examples of products from polymer clay https://clay-crafts.com/

In JavaScript, “prototype” refers to the mechanism by which objects can inherit properties and methods from other objects. It’s a key concept in understanding object-oriented programming in JavaScript.

Prototype Chain

Each JavaScript object has a prototype, which serves as a blueprint for properties and methods. Objects can inherit from their prototypes, forming a chain.

Alles über Träume und Träume. Interpretation und Bedeutung der Träume https://traumauslegung.com/

Usage and Example

Here’s an example illustrating the usage of “prototype” in JavaScript:

    function Animal(name) {
        this.name = name;
    Animal.prototype.makeSound = function() {
        console.log("Animal sound");
    function Dog(name) {
        this.name = name;
    Dog.prototype = Object.create(Animal.prototype);
    const dog = new Dog("Buddy");
    dog.makeSound(); // Output: "Animal sound"

Object Prototypes and Classes

The concept of prototypes is closely related to JavaScript’s prototype-based inheritance. It’s important to understand when working with classes and objects in JavaScript.


“Prototype” in JavaScript refers to the mechanism of inheritance through which objects can share properties and methods with other objects.

Educational Encyclopedia