On Sun, Dec 2, 2012 at 2:47 PM, Allen Wirfs-Brock <[email protected]>wrote:
> > On Dec 1, 2012, at 8:14 AM, Jason Orendorff wrote: > > snip > > > 2. According to 15.4.6.2.2, the iterators produced by > Array.prototype.keys and .items will expose the index values as strings. > Why strings? Don't numbers make more sense? > > > > It does that because array index keys are exposed as strings everywhere > else. > > There is no specific definition (that I can find) of the keys iterator for > arrays in the wiki proposal. There is only the general @iter.keys function > which is defined in terms of for-in and hence returns string property keys. > > However, I don't have any objection to return integer keys in this case. > +1 Users will take this for granted and assume the index value is going to be a number since map, forEach, filter, every, some and reduce all pass a number as the index argument and for-loops increment a number. Rick > > Allen > >
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