Thanks! Had completely missed that GH repo's existence. :) Cool that this is moving forward!
Thanks to Sebastian for the explanation as well! On Thu, 23 Apr 2015 18:46 Michael Ficarra <[email protected]> wrote: > See https://github.com/tc39/ecma262. This proposal is currently at stage > one. To find out more about what that means, read the process document > <https://docs.google.com/document/d/1QbEE0BsO4lvl7NFTn5WXWeiEIBfaVUF7Dk0hpPpPDzU> > . > > On Wed, Apr 22, 2015 at 8:15 AM, Jussi Kalliokoski < > [email protected]> wrote: > >> I just noticed that Babel support trailing commas in function arguments >> lists, imports and destructuring as well: >> >> >> http://babeljs.io/repl/#?experimental=true&evaluate=true&loose=false&spec=false&code=import%20%7B%0A%20%20voo%2C%0A%20%20doo%2C%0A%7D%20from%20%22.%2Fdat.js%22%3B%0A%0Alet%20%7B%0A%20%20x%2C%0A%20%20y%2C%0A%7D%20%3D%20voo%3B%0A%0Alet%20%5B%0A%20%20z%2C%0A%20%20m%2C%0A%5D%20%3D%20doo%3B%0A%0Afunction%20qoo%20(%0A%20%20x%2C%0A%20%20y%2C%0A)%20%7B%7D >> >> Is this correct behavior? I'm not >> >> FWIW as I already use trailing commas object and array literals for >> better diffs, I really like this feature as it comes in handy especially in >> function signatures where you define types (TypeScript/flow style >> annotations), for example: >> >> function sort <T> ( >> array : Array<T>, >> compareFn : ((left: T, right: T) => number), >> ) : Array<T> { >> ... >> } >> >> as well as import statements for modules that declare constants: >> >> import { >> BRAND_COLOR, >> DEFAULT_TEXT_COLOR, >> DARK_GRAY, >> LIGHT_GRAY, >> } from "./constants/COLORS"; >> >> not to mention "options object" style function signatures: >> >> class Person { >> constructor ({ >> firstName, >> lastName, >> birthDate, >> country, >> city, >> zipCode, >> }) { >> this.firstName = firstName; >> this.lastName = lastName; >> this.birthDate = birthDate; >> this.country = country; >> this.city = city; >> this.zipCode = zipCode; >> } >> } >> >> To me, the spec language as per Jason's HTML version looks like at least >> for destructuring this is supported, but at least I can't read the spec to >> allow trailing commas in function signatures. At least this doesn't seem to >> be incorporated into the spec: >> >> https://esdiscuss.org/notes/2014-09/trailing_comma_proposal.pdf >> >> Is the proposal still on track for ES7 and am I correct in my reading of >> the destructuring allowing trailing commas? >> >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> >> > > > -- > Shape Security is hiring outstanding individuals. Check us out at > *https://shapesecurity.com/jobs/ > <https://shapesecurity.com/jobs/>* >
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