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They are bundled, it’s called ES6/ES2015. But for backwards compatibility, the userland packages are still used regularly.
by styfle 9y ago
They are bundled, it’s called ES6/ES2015. But for backwards compatibility, the userland packages are still used regularly.
- slig 9y ago> They are bundled, it’s called ES6/ES2015 I wish. See the `Set` implementation [1], for instance. It's lacking very basic stuff like union and intersection, forcing the user to copy/paste code or add another dependency. Does someone know why they do that? Looking from the outside it seems that the committee in charge of this doesn't know what they're doing. [1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
- styfle 9y agoAgree, Set is a disappointment. I think the “Why” is because it’s easier to get everyone to sign off on small changes than large changes that can never be removed. The web platform has to live for a long time and be backwards compatible.
- slig 9y agoBut the `Set` was completely new. And things like union and intersection are basic features and without it the `Set` thing is almost useless, so it wouldn't make any sense to remove they in the future as much as it didn't make sense to not include them now.
- styfle 9y agoI agree with you but there are ways to perform union and intersection with existing APIs. http://2ality.com/2015/01/es6-set-operations.html http://2ality.com/2015/01/es6-set-operations.html > Long-term, I expect JavaScript to have built-in functionality for this, e.g. via functions that operate on iterables