What is dunder proto in JS

what-is-dunder-proto.md

What is dunder proto in JS

dunder proto === __proto__

Every object in JS has this property.

It points back to the prototype object of the constructor function that created that object.

Only Object.prototype.__proto__ === null

How to retrive the value of __proto__ in production code

// you can use:
let testObj = {}
testObj.__proto__

// BUT a better approach would be:
Object.getPrototypeOf(testObj)

// result:
// Object.prototype

Thanks man, I appreciate your short answer.