Function all

Returns a coroutine that waits for every coroutine in coros to complete.

Incomplete coros are advanced in order every frame. Cancelling this coroutine with Generator.return forces all remaining coroutines to Generator.return as well, triggering their finally handlers if any.

See

Generator.return

Example: Wait for downloads

import * as coro from '@ajeeb/coroutines'

const downloads = []

function* download(url) {
     let done = false
     fetch(url)
       .then(response => response.json())
       .then(data => {
             downloads.push(data)
             done = true
       });
     while(!done)
         yield
}

const SCHED = new coro.Schedule()
SCHED.add(function() {
     yield* coro.all(download('http://example.com/foo.json')
                     download('http://example.com/bar.json')
                     download('http://example.com/baz.json'))
     console.log(downloads) // will have all downloaded json data at this point
})
setInterval(SCHED.tick, 100)
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