Primary issue is in isTypedArray(a): Uin32Array.prototype.buffer.call(a);
Besides the typos, accessing .buffer throws in at least Chrome & Firefox. Then .buffer is an object so if it doesn't throw there's no .call to execute. -JDD On Wed, Jan 28, 2015 at 4:55 PM, Allen Wirfs-Brock <al...@wirfs-brock.com> wrote: > > On Jan 28, 2015, at 4:40 PM, John-David Dalton < > john.david.dal...@gmail.com> wrote: > > Kind of a bummer. The isTypedArray example from > https://esdiscuss.org/topic/tostringtag-spoofing-for-null-and-undefined#content-59 > is > incorrect. Is there an updated reference somewhere? > The toStringTag result is handy because it allows checking against several > tags at once without having to invoke multiple functions each with their > own try-catch and all that perf baggage. > > How is it incorrect? Are you referring to the fact that both typed arrays > and DataView objects have a [[ViewedArrayBuffer]] internal slot. If so, > I think this is a specification but that I should fix. > > Allen > >
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