Have you tried writing a combinator which does exactly that? Take a look at
zip in python.
On Feb 14, 2015 2:52 PM, "Brian Blakely" <anewpage.me...@gmail.com> wrote:
> Apologies if this isn't the correct forum for this, and please point me
> the right way if not.
>
> The motivation is that it would be useful if one could tersely loop over
> multiple iterators simultaneously. I think this could be accomplished with
> a "for-of-and" syntax.
>
> Example:
>
> let temp = [80, 35, 20];
>
> let cond = ['sunny', 'cloudy'];
>
> for(let [t, c] of temp and cond) {
> console.log(t, c);
> // first: 80 'sunny'
> // second: 35 'cloudy'
> // third: 20 undefined
> }
>
> As above, this is useful when we have two separate but related data sets.
> It becomes more powerful as the data sets become more complex.
>
> Example:
>
> let forecast1 = [
> {
> "highTemp": "90",
> "lowTemp": "70"
> },
> {
> "highTemp": "92",
> "lowTemp": "82"
> },
> // etc...
> ];
>
> let forecast2 = [
> {
> "high": "85",
> "low": "68",
> "condition": "partiallycloudy"
> },
> {
> "high": "95",
> "low": "80",
> "condition": "sunny"
> },
> // etc...
> ];
>
> for(let [f1, f2] of forecast1 and forecast2) {
> console.log(average(f1.highTemp, f2.high));
> }
>
> Thanks for reading!
>
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>
>
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