Proposal: expression mode (=)

JongChan Choi jong at chan.moe
Sun Oct 30 08:54:09 UTC 2016


OMG sweet! I love it.
then how it’ll be formed when mixed with labeled statement?

> 2016. 10. 30., 오후 3:15, Yongxu Ren <renyongxu at gmail.com> 작성:
> 
> Yes, it does the exact same thing.
> I think using = and operators is a bit cleaner than 'do'.
> However, The biggest advantage for this feature is you can write functional code without extra syntax.
> Allowing block to return value will allow you to write concise code like in ocaml Haskell or scala.
> 
> On Sunday, October 30, 2016, Olivier Lalonde <olalonde at gmail.com <mailto:olalonde at gmail.com>> wrote:
> Sounds like the "do expressions" proposal. http://wiki.ecmascript.org/doku.php?id=strawman:do_expressions <http://wiki.ecmascript.org/doku.php?id=strawman:do_expressions>
> 
> On Sat, Oct 29, 2016 at 5:32 PM, Yongxu Ren <renyongxu at gmail.com <javascript:_e(%7B%7D,'cvml','renyongxu at gmail.com');>> wrote:
> potentially, this syntax can be extended to functions
> ```
> function f() ={stat}
> // is equivalent to
> function f() {return stat}
> 
> 
> let f = () => ={stat}
> // are equivalent to
> let f = () => stat
> ```
> 
> it can also be applied to `try...catch`.... and more, such as
> 
> ```
> // pattern matching
> match(expr) {
>   pattern1:={
>     //block
>   }
>   pattern2:={
>     //block
>   }
>   pattern3:={
>     //block
>   }
> }
> 
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> 
> 
> 
> -- 
> - Oli
> 
> Oli Lalonde
> http://www.syskall.com <http://www.syskall.com/> <-- connect with me!
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