Why we need to clean up __proto__

John-David Dalton john.david.dalton at gmail.com
Wed Dec 28 10:26:12 PST 2011

> In GWT, we did exactly this prefix operation, and we found GC became a
> problem on IE because of it, as each lookup or store in the map creates a
> new garbage string.

GWT has larger problems if key prefixes are giving it perf grief (even
in older IE).


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