Interesting trick, Andrea. Never thought of that before. On Mon, Oct 12, 2015, 02:31 Andrea Giammarchi <[email protected]> wrote:
> ... sort of (no pun intended) > > ```js > let sorted = names.sort((...$) => $[0] > $[1]); > ``` > > Regards > > On Mon, Oct 12, 2015 at 2:58 AM, Frankie Bagnardi <[email protected]> > wrote: > >> 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 >> >> > _______________________________________________ > 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
