On Tue, Jan 24, 2017 at 12:25 PM, Rasmus Schultz <ras...@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 <le...@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. >> >> -- >> PHP Internals - PHP Runtime Development Mailing List >> To unsubscribe, visit: http://www.php.net/unsub.php >> >
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". -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
