On Tue, Aug 30, 2011 at 2:32 AM, Julien Richard-Foy <jul...@richard-foy.fr> wrote: > On Aug 30, 2011, at 10:33 AM, Jonas Sicking wrote: >> My point was that it was a mistake for querySelectorAll to return a >> NodeList. It should have returned an Array. Sounds like people agree >> with that then? > > I think it’s better to return an immutable object (mutable objects are source > of programming errors). But this immutable object should have traversing > method (forEach, map, filter, etc.).
Can you explain how mutable objects are a source of programming errors. It seems that javascript made the choice a log time ago to use mutable objects and settable variables, as opposed to for example haskell. / Jonas
