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[01:52:44 CDT(-0500)] <Bosmon> The great thing about the Object.prototype.toString test was that it only ever produces short and standard strings like [object Object] which can certainly be generated performantly
[01:55:52 CDT(-0500)] <Bosmon> https://github.com/jashkenas/underscore/pull/102
[01:55:57 CDT(-0500)] <Bosmon> Endless discussion on _ here