then
make it painless to adapt between callbacks and promises
usage
then
is like a magic portal to warp between Promised land and the firey depths of Callback hell.
var then = var fs = fs // although you may want to be using streaming file methods, anyhow
When we invoke then()
the first time, it creates a callback to give to fs.readFile
. When we call it the next time, it's like a Promises/A+ then
method.
Importantly, there are times when we want to go back from a chain of promises to a callback:
{ if err return var promise = then}
api
then : () => Promise | (resolved: Function, rejected: Function) => Promise
See usage note above for behavior.
then.callback(Promise<T>, Callback<T>) => void
Registers the callback
as a handler for promise resolve
and reject
events.
installation
$ npm install th
running the tests
From package root:
$ npm install
$ npm test
contributors
- jden jason@denizac.org
license
MIT. (c) MMXIII AgileMD http://agilemd.com