Prototypal Inheritance

An object(Child) getting accessed to properties and functions of another object(Parent).

In JavaScript, Array and Functions are inherited from Object.

Prototypal Inheritance

we can see the parent object using __proto__ property.

Examples:
    const arr = [];
    console.log(arr.__proto__) // Array
    console.log(arr.__proto__.__proto__) // Object
    
    function a() {}
    console.log(a.__proto__) // f[native code]
    console.log(a.__proto__.__proto__) // Object
    
    const obj = {};
    console.log(a.__proto__) // Object

for more details check here.