It shouldn't, even in ES3 (read attentively). Dmitry.
On 17.08.2011 8:44, John-David Dalton wrote:
So @kitcambridge and I were talking spec and started trying to find in spec something that explains why something like: Array.prototype.reduce which is by default { [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true } will change to [[Enumerable]]: true when: Array.prototype.reduce = function() {…}; So far we have struck out. In ES3 we found 8.6.2.2 [[Put]](P, V) http://bclary.com/2004/11/07/#a-8.6.2.2 and its step 4: 4. Set the value of the property to V. The attributes of the property are not changed. And then we dug into ES5.1 and its [[Put]] http://es5.github.com/#x8.12.5 and its step step 3a which leads to [[DefineOwnProperty]] with a Desc of {[[Value]]: V} and its step 10b to 12, then 13. but couldn't find where it stated changing the [[Enumerable]] attribute. Would you all help point to where this is defined in spec? Thanks, JDD _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
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