Okay... Maybe not CoffeeScript (don't normally use it), but I know a few notable derivatives have that (particularly Coco and LiveScript).
As for the idea itself, still a -1 from me. Unless we add an equivalent for every binary operator, it's not much of an addition. It's just another special case, another band aid. Unless your identifier is 30+ characters, I don't see much benefit. Unlike with numeric operators or string building, this isn't nearly as common beyond that one case (string/array slicing). And for a single character identifier, you're only really saving 1 character. 2 for 2-character identifiers. There's also no performance gain from it, just sugar. And in the LiveScript code I've seen (a language with this operator), I still rarely see it. That's with a community that enjoys experimenting with the syntax, almost gaming it at times. (Well, there was talk a few months ago about where sugar can become a problem itself, especially when there's 2-3 ways to write 7-8 basic constructs. [1]) [1]: https://github.com/gkz/LiveScript/issues/721 On Mon, Aug 10, 2015, 22:27 Bergi <[email protected]> wrote: > Isiah Meadows schrieb: > > That's not really the point. > > > > The suggestion is this instead: > > > > ```js > > if (s[0] === '/') s = s.slice(1); > > if (s[0] === '/') s .= slice(1); > > ``` > > > > This already exists in CoffeeScript and most derivatives/dialects. > > > > ```coffee > > s .= slice 1 if s[0] is '/' > > ``` > > > > Don't know of any other languages that have an equivalent, though. > > Really? Which version of CS, or which dialect are you using? It doesn't > work for me in the online tool > < > http://coffeescript.org/#try:s%20%3D%20%22%2Fsomething%22%0As%20.%3D%20slice%201%20if%20s%5B0%5D%20is%20'%2F > '>. > > But if you're that much inclined to save single characters, I'd > recommend to use > ```js > s = s.slice(s[0] == '/'); > ``` > > Bergi > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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