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What are object prototypes in JavaScript?

Asked on Aug 03, 2024

Answer

Object prototypes in JavaScript are a mechanism by which objects inherit properties and methods from other objects. This allows for shared functionality across instances.
// Create a prototype object
        const animal = {
            speak() {
                console.log("Animal speaks");
            }
        };

        // Create a new object that inherits from the animal prototype
        const dog = Object.create(animal);
        dog.speak(); // Output: Animal speaks
Additional Comment:
  • The "animal" object acts as a prototype for the "dog" object.
  • "dog" inherits the "speak" method from "animal".
  • "Object.create" is used to create a new object with a specified prototype.
  • Prototypes allow for efficient method sharing across multiple objects.
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