Scoped binding of a method to an object

Brian Kardell bkardell at
Sun Oct 13 11:49:01 PDT 2013

On Oct 13, 2013 2:01 PM, "Benjamin (Inglor) Gruenbaum" <inglor at>
> Brendan Eich <brendan at> wrote:
> > No, object detection, polyfilling, and even "prollyfilling" are common
and successful adaptationsp on the Web.
> Polyfilling is great _after_ the method has already been added to the
spec. I'm completely fine with adding an shim to IE8,
the problem with adding a method that's not on the prototype yet is that
it'll fail in case the spec is different from the implementation I chose.
If you mentioned PrototypeJS, its `.bind` method is one such example.

Note the R though - see prollyfill. org and search public-nextweb for
"prefix" to find a number of debates on this very topic.  I too would like
to  see a lot of smart folks on the various lists agree to some kind of
best practice on this so we can keep things forward compatible and avoid
situations that potentially break as something moves toward standard - that
bit us a lot historically.
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