Javascript Programming Tutorials, Guides & Best Practices

When you try to access a property or method on an object, JavaScript first checks the object itself. If the property or method doesn’t exist there, it follows the prototype chain, checking each prototype until it finds the property or reaches the end of the chain.

const grandparent = {
    sayHi() {
        console.log('Hi from the grandparent!');
    }
};

const parent = Object.create(grandparent);
const child = Object.create(parent);

child.sayHi(); // Output: Hi from the grandparent!