Block and wait for all of the given operations to complete. Returns an array of values that the given operations evaluated to. This has the same purpose as Promise.all.

If any of the operations become errored, then all will also become errored.

Example

import { all, expect, main } from 'effection';

await main(function*() {
 let [google, bing] = yield* all([
   expect(fetch('http://google.com')),
   expect(fetch('http://bing.com')),
  ]);
 // ...
});