I don't think there's much value in this. Also sort is a bad example because it'd look like this, and there's no nifty shortcut answer to it.
```js names.sort((a, b) => a < b ? 1 : a > b ? -1 : 0); ``` In most cases you save a couple characters, but you can just use x/y/a/b/f/g/n/xs/xss for variable names in arrow functions instead of the $0 (which would likely be \0 in js). On Sun, Oct 11, 2015 at 3:26 PM, Caitlin Potter <[email protected]> wrote: > In the case of sorting, are arrow functions not good enough? Or are we > really asking for full continuation support > > On Oct 11, 2015, at 5:51 PM, Alexander Jones <[email protected]> wrote: > > IMO this is a good idea. When it's abundantly clear from context, I've > already been naming my arrow function params _ if singular, and _1, _2 etc > if several. As always, picking some punctuation straight from the scarce > and sacred set of remaining ASCII symbols is going to be tricky. (If only > we could just go APL on this!) > > On 11 October 2015 at 16:45, Mohsen Azimi <[email protected]> wrote: > >> Is it possible to extend JavaScript syntax to support Swift style block >> syntax[1]? >> >> In Swift it's possible to omit return keyword >> ``` >> >> 1. reversed = names.sort( { s1, s2 in s1 > s2 } ) >> >> ``` >> >> or omit argument declaration like this: >> >> ``` >> >> 1. reversed = names.sort( { $0 > $1 } ) >> >> ``` >> >> or apply an operator to arguments of a function >> >> ``` >> >> 1. reversed = names.sort(>) >> >> ``` >> We have the first feature in ES2015 already: >> >> ``` >> let sorted = names.sort((a, b)=> a > b); >> ``` >> >> But for omitting argument declaration we need to find an alternative to >> $0, $1... since those are valid variable names in JS. Maybe we can use #0, >> #1... instead. >> >> This is very useful for functional programming aspect of JS. For example >> in a filter function: >> >> ``` >> let passed = objs.filter(#0.passed) >> ``` >> >> >> >> >> [1][ >> https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Closures.html >> ] >> >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> >> > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
