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

[Charlie Monroe]

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 <mailto: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 <mailto: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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>> 

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