1491327 - I think, I found the logical error in the tutorial.

Status: RESOLVED FIXED

(Developer Documentation Graveyard :: Learning Area, defect)

Description

[romzeeed]

:: Developer Documentation Request

      Request Type: Correction
     Gecko Version: unspecified
 Technical Contact: 

:: Details

Hello.
In the first sentences of "A prototype-based language?" (https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/Object_prototypes) I think I see the logical error.

1. "JavaScript is often described as a prototype-based language — each object has a prototype object, which acts as a template object that it inherits methods and properties from".
// So, EACH object has a prototype object.

2. "An object's prototype object may also have a prototype object, which it inherits methods and properties from, and so on". 
// Object's prototype object may have a prototype object. It means that an object may not have a prototype object. But in a first sentence, it is stated that every object has a prototype object.
// So, not every object has a prototype object, I think. Technically, every object with an exception of the object, which stands on top of that hierarchy.

I am just learning JS, so I wonder: this is my misunderstanding or inaccuracy in the tutorial?

Comment 1

[romzeeed]

And by using "Object.create(null)" I can create an object without object-prototype.

Comment 2

[Chris Mills [:cmills]]

This is a really good point, thanks for reporting this! You are right — the wording was bad, as not all objects have a prototype. I've updated this now; does this work better for you?

Comment 3

[romzeeed]

(In reply to Chris Mills (Mozilla, MDN editor) [:cmills] from comment #2)
> This is a really good point, thanks for reporting this! You are right — the
> wording was bad, as not all objects have a prototype. I've updated this now;
> does this work better for you?

Thank, Chris! 
Yes, now I'm happy.

Comment 4

[Chris Mills [:cmills]]

Cool, glad you are happy! Closing.