q-jscex
v0.0.2
Published
Async/Await syntax support for Q promises
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q-jscex
Synopsis
// Drop-in replacement to require('q')
var Q = require('q-jscex');
var HTTP = require('q-http');
// Define an Async function with a special $await keyword in it
var fetch = eval(Q.async.$(function(url) {
// $await takes anything that returns a Q Promise
var buf = $await( HTTP.read(url) );
// ...pauses one second...
$await( Q.delay(1000) );
// ...do something with the returned buffer...
return buf;
}));
// Return value of Async functions is always a Q Promise
fetch('http://.../').done(...).fail(...).fin(...);
Description
This module exports a Q root object (Q
) containing an
Q.async.$
helper; it compiles a regular function into one
that returns a Q Promise object.
Functions defined with Q.async.$
has access to an extra $await
keyword, which implicitly waits for other Q Promise objects.
Please see example.js
for a sample usage, and type make demo
to see it in action.
The source code is in src
directory and written in LiveScript.
Note that LiveScript is not a runtime dependency of this module;
it's only used for development.
The underlying JIT compiler is available as the Q.async.$.Jscex
object.
See Also
- Jscex: http://jscex.info/
- Q: https://github.com/kriskowal/q
- LiveScript: https://gkz.github.com/LiveScript
CC0 1.0 Universal
To the extent possible under law, 唐鳳 has waived all copyright and related or neighboring rights to q-jscex.
This work is published from Taiwan.
http://creativecommons.org/publicdomain/zero/1.0