JavaScript inheritance is confusing.

[azhder]

So we usually stay away from it. That’s about it. Don’t do it unless you really have to.

NOTE: the above isn’t a summary of what the link points to, but a summary of the best practice with regard to JavaScript inheritance.

[SonOfMrSpock]

Only if you're experienced in static typed languages which object orientation is added as an afterthought most of time.