Prototype in javascript

Proto in JavaScript.txt

arr.__proto__ = object
arr.prototype is same is arr.__proto__ which is a object.
and each and every object in javascript has a prototype.

that means arr.__proto__ also has a prototype

arr.__proto__.__proto__ which is actually Object.prototype which is again an object

arr.__proto__.__proto__.__proto__

then it returns null in the end

Object.__proto__.__proto__ is null