for statement with index and value

[Sébastien Doeraene]

Hi,

And it's called zipWithIndex in Scala:

```scala
for ((value, i) <- someTraversable.zipWithIndex) {
  // do stuff
}
```

And, in Ruby, it's each_with_index:

```ruby
for value, i in someArray.each_with_index
  # do stuff
end
```

I see a pattern, here. It seems several other languages are pretty fine
with a simple method that bundles elements of a collection with their
indices, and then rely on destructuring on the left-hand-side of their for
loop to extract them again, instead of adding additional syntax for this
use case. IMO, that's a strong argument for doing the same thing in ES.

Cheers,
Sébastien

I think there's something

On Tue, Jul 14, 2015 at 8:49 PM, Alexander Jones <alex at weej.com> wrote:

> It's called `enumerate` in Python. And it's trivial to implement:
>
> ```js
> for (let [i, value] of enumerate(someIterable)) {
>    // behold...
> }
> ```
>
> On Tuesday, July 14, 2015, Domenic Denicola <d at domenic.me> wrote:
>
>> From: Tingan Ho [mailto:tingan87 at gmail.com]
>>
>> > But they aren't clean solutions to a wildly popular problem.
>>
>> I disagree.
>> _______________________________________________
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>> es-discuss at mozilla.org
>> https://mail.mozilla.org/listinfo/es-discuss
>>
>
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>
>
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