Brendan Eich wrote: > On Apr 25, 2008, at 2:08 PM, Brendan Eich wrote: > >> for (prop in obj) { >> ... obj[prop] ... >> } >> >> to look like >> >> for each (value in obj) { >> ... value ... >> } >> >> where obj might be an Array. The symmetry between for-each-in and for- >> in that E4X half-supports (viz, prototype property enumeration with >> shadowing, and deleted-after-loop-starts coherence) is broken. > > Just in case this is not well-known, SpiderMonkey starting in Firefox > 1.5 supported E4X and made the for-each-in loop work for all object > types, not just XML/XMLList. But not on Array element (indexed > property) values only, in index order -- again property creation > order, and named as well as indexed enumerable properties, are > visited. This shares code with for-in and preserves the equivalence > shown in the rewrite example above.
I'm baffled trying to figure out what you're trying to say in the last paragraph. Waldemar _______________________________________________ Es4-discuss mailing list Es4-discuss@mozilla.org https://mail.mozilla.org/listinfo/es4-discuss