2011/7/6 Andreas Rossberg <[email protected]> > While putting together some test cases for Object.keys, I wondered: is > it intended that property names are always passed to traps as strings? >
That is indeed the intent. > It seems like a reasonable assumption, but is not currently the case > everywhere (e.g. the default implementation for `keys' can violate > this assumption when passing names to this.getOwnPropertyDescriptor). > How so? The default implementation for the keys trap relies on the return value of the getOwnPropertyNames() trap, whose return value is coerced to an array of Strings. Cheers, Tom > /Andreas > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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