Comparing ES7 and core.async

ES7	core.async
async function() {...}	(fn [] (go ...))
await ...	(<! ...)
await* or Promise.all(...)	(doseq [c ...] (<! c))

async

Calling foo returns a promise receiving value 1:

async function foo () {
  return 1;
}

Calling foo returns a channel receiving value 1:

(defn foo []
  (go 1))

await

bar is parked until foo has finished:

async function bar() {
  await foo();
}

bar's go-block is parked until foo has finished:

(defn bar []
  (go
    (<! (foo))))

await all

baz waits for foo and bar to complete:

async function baz() {
  await Promise.all([foo(), bar()]);
}

(defn baz []
  (go
    (doseq [c [(foo) (bar)]]
      (<! c))))