Typo. I'm worrying about this: arr[i++]=obj[e]
More so the return =obj[e] I worry on this: arr[i++]//this will evaluate first before the value return since the = have a lower precedence than ++. So the index that is assign the object will be the index that contains it's string name. Here reference for precedence: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence > On May 12, 2015, at 3:08 PM, Rick Waldron <[email protected]> wrote: > > > >> On Tue, May 12, 2015 at 1:58 PM Emanuel Allen <[email protected]> >> wrote: >> Is this the same across browsers: >> var i = 0, arr = 'a','b','c'], e, >> obj = {a:{name:'a'}, b:{name:'b'},c:{name:'c'}}; >> while ((e=arr[i])&&(arr[i++]=obj[e])); >> >> //output: >> >arr >> >[{name:'a'},{name:'b'},{name:'c'}] > > Yes > >> >> I'm worrying about the "i++"... > > Worried about what, exactly? > > Your subject says "prefix", but this is the postfix operator. > >> I test it out in node's repl... V8... Should the language it self be the >> same across browsers in situation like this? > > Yes, absolutely. It's explicitly described in the spec (and has been for a > very long time). > > Rick
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