Promise.resolve
Promise can be subclassed, so the this context for resolve affects
what class is instantiated.
This is not valid answer. Arrays can be subclassed too, but (1,Array.of)(2,3 ) returns instance of Array.
It is the valid answer, subclassing is the reason behind the design choice
of Promise static members depending on this. If it was a good decision or
not is another topic. Array.of was designed in a different occasion and
static methods inheritance was not a subject at the time
Em dom, 3 de fev de 2019 22:04, Michał Wadas <michalwadas at gmail.com escreveu:
You'll find a solid explanantion here: tc39/ecma262#544
Array.from, Array.of were designed in very early stage of ES2015, and fact that they work that way (while e.g. Promise.resolve does not), is now considered a mistake that was too late to revert at some point.
-- Sent from: mozilla.6506.n7.nabble.com/Mozilla-ECMAScript-4-discussion-f89340.html
Was there any reason Promise.resolve was not afforded the ability to dispatch outside of
thispointing to thePromiseconstructor?For example:
const {resolve} = Promise resolve(1234)
This currently throws.
Was there any reason Promise.resolve was not afforded the ability to dispatch outside of `this` pointing to the `Promise` constructor? For example: const {resolve} = Promise resolve(1234) This currently throws. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.mozilla.org/pipermail/es-discuss/attachments/20190202/b37ee418/attachment.html>