Subclassing Javascript Arrays. TypeError: Array.prototype.toString is not generic

Question

Is it possible to subclass and inherit from javascript Arrays?

I\'d like to have my own custom Array object that has all the features of an Array, but contains addit

Answer 1

Juriy Zaytsev (@kangax) just today released a really good article on the subject.

He explores various alternatives like the Dean Edwards iframe borrowing technique, direct object extension, prototype extension and the usage of ECMAScript 5 accessor properties.

At the end there is no perfect implementation, each one has its own benefits and drawbacks.

Definitely a really good read:

• How ECMAScript 5 still does not allow to subclass an array