On 4 December 2014 at 00:54, David Bruant <[email protected]> wrote: > The way I see it, data structures are a tool to efficiently query data. They > don't *have* to be arbitrarily mutable anytime for this purpose. > It's a point of view problem, but in my opinion, mutability is the problem, > not sharing the same object. Being able to create and share structured data > should not have to mean it can be modified by anyone anytime. Hence > Object.freeze, hence the recent popularity of React.js.
I agree, but that is all irrelevant regarding the question of weak maps, because you cannot freeze their content. So my question stands: What would be a plausible scenario where handing a weak map to an untrusted third party is not utterly crazy to start with? In particular, when can giving them the ability to clear be harmful, while the ability to add random entries, or attempt to remove entries at guess, is not? /Andreas _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
