Re: Pipe Operator v2
| From: | Stephen Reay | Date: | Wed, 25 Jan 2017 06:06:32 +0000 |
| Subject: | Re: Pipe Operator v2 | ||
| References: | 1 2 3 4 5 6 7 8 9 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-97949@lists.php.net to get a copy of this message | ||
As a userland developer I feel $$ (or some variation starting with $) is reasonably natural -
it's a variation on a regular variable.
Sent from my iPhone
> On 25 Jan 2017, at 03:53, Levi Morrison <levim@php.net> wrote:
>
>> On Tue, Jan 24, 2017 at 12:25 PM, Rasmus Schultz <rasmus@mindplay.dk> wrote:
>> Isn't
_ more generally used as a "discard"
>> placeholder in most languages?
>>
>> At least in Swift, Go, Scala, Dart and C# (starting with v7) I think?
>>
>> I don't recall having seen it mean "fill in the blank". In what languages?
>>
>>
>>> On Fri, Jan 20, 2017 at 4:26 PM, Levi Morrison <levim@php.net> wrote:
>>>
>>> Oops, sorry for an email that just quotes others; mis-clicked send.
>>>
>>>> Last, a cosmetic suggestion : replace '$$' with '$<' (more
>>>> explicit as
>>>> 'input data', imo).
>>>
>>> If we aren't going to use $$ I'd like to use
>>> _ or __ which read
>>> similar to "fill in the blank" and has precedence in other languages.
>>>
>>> But at this stage I'd much rather focus on changing the general model
>>> to what I've proposed instead of what is outlined in the RFC. I care
>>> much more about the feature than the exact syntax for it.
>>>
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>
> Scala does use it this way. It also uses it in pattern matching to
> mean "match anything else" or "I don't care about this one".
>
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