World-writable memory on Samsung Android phones [LWN.net]

World-writable memory on Samsung Android phones

Posted Dec 21, 2012 15:00 UTC (Fri) by sorpigal (subscriber, #36106)
In reply to: World-writable memory on Samsung Android phones by idupree
Parent article: World-writable memory on Samsung Android phones

it doesn't necessarily impact performance, because modern Javascript engines are often smart enough to undo this oddity without changing the language semantics

"Often" is not always; crazy isn't that far behind us.

I wonder, now, about the performance of code I've written where complex objects and functions have been used as keys. I imagined I was storing pointers, but if the key is really the stringification of the object... that can't be good.

I suppose it sort-of makes sense that somebody decided storing a numeric key as a string was less scary than storing it as a float, but the madness has to stop some time.

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