On: React v15.5.0

[EugeneOZ]

Example with "extends" is also in your docs (exactly by link of this post), so I'm not sure what it proves.

[seattle_spring → EugeneOZ]

That's extending the base react component class, not an existing component class.

[EugeneOZ → seattle_spring]

Well, if you think there's a difference then we never agree :)

[jhall1468 → EugeneOZ]

Creating a nested class hierarchy and extending a single base class for all components are decidedly not the same thing.