difference between Object.create(Object.prototype) , Object.create(Object) and Object.create(null)

Question

Which parameter should i pass for the first parent object from which others will inherit and which one is more efficient

Object.create(Object.prototype)

Obj         


        

Answer 1

What is being returned is an object.

>>> typeof Object.create(Object)
<<< "object"
>>> Object.create(Object)
<<< Function {}
//           ^^

Function is the name which Chrome addresses the object's constructor. See How are javascript class names calculated for custom classes in Chrome Dev Tools?

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This part of the answer addresses @phenomnomnominal's comment in the question, explaining why the created object has inherits function properties such as call.

The Object constructor is a function, and thus inherits from the Function prototype:

>>> Object.call === Function.prototype.call
<<< true

So an object having Object as prototype will have a link to the Function prototype via prototype chain as well:

>>> Object.create(Object).call === Function.prototype.call
<<< true

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And as mentioned by @TJ, using a constructor as prototype is rather odd. You should specify an object as the prototype that the created object will inherit from. @TJ already did a pretty good job explaining this part.