[swift-evolution] Proposal: Remove the underscore and `in` for `for` loop

[Xiaodi Wu]

`continue` can be rewritten `return` inside `forEach`.
On Tue, Jul 5, 2016 at 02:30 Charlie Monroe via swift-evolution <
swift-evolution at swift.org> wrote:

> Example:
>
> for 1...5 {
> guard let data = self.loadSomeData() else {
> /// Will try it several times and then report failure to the user.
> continue
> }
> // process data
> return
> }
>
> // Error, failed to load data even after retrying.
>
> On Jul 5, 2016, at 9:23 AM, Jose Cheyo Jimenez <cheyo at masters3d.com>
> wrote:
>
> How would you build a condition to break if you are ignoring each value ?
> Unless you are hard coding a condition in which case I would still argue
> that the proposed shorthand for is less clear than `for _ in` or forEach.
>
> On Jul 4, 2016, at 9:29 PM, Charlie Monroe <charlie at charliemonroe.net>
> wrote:
>
> -1 this is why we have collection.forEach{}
>
> (1...10).forEach {
> // do something.
> }
>
>
> This is not equivalent since it doesn't allow you to break from the for
> loop.
>
>
> On Jul 1, 2016, at 12:38 AM, Diego Barros via swift-evolution <
> swift-evolution at swift.org> wrote:
>
> When you want a simple `for` loop, for example:
>
> for _ in 1...10 {
>
> // do something 10 times
>
> }
>
>
> Clean-up and simplify the syntax by removing the superfluous underscore
> and `in`:
>
>
> for 1...10 {
>
> // do something 10 times
>
>
> }
>
> -- diego
>
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