On Nov 4, 2011, at 8:50 AM, Juan Ignacio Dopazo wrote: > On Thu, Nov 3, 2011 at 7:55 PM, Mark S. Miller <[email protected]> wrote: > function makeTable() { > var array = []; > return Object.freeze({ > add: function(v) { array.push(v); }, > store: function(i, v) { array[i] = v; }, > get: function(i) { return array[i]; } > }); > } > > Given just a table instance, can Bob nevertheless obtain direct access to > the underlying array? > > So Bob can cheat by extending Array.prototype, right?
MarkM said "all primordial built-in objects are transitively frozen" so Array.prototype is not extensible and Array.prototype.push is not writable... Allen
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