zed
lazily map functions to a lazy promise
usage
var zed = var z = z
where a
, b
, and c
are functions like you would pass as onFulfilled handlers to promise.then()
. That is, if it throws, the resultant promise will be rejected. If it returns a value, that value will be used as the argument for the next function. If it returns a promise, the sequence will wait on that promise to be fulfilled and then use that value as the argument on the next step in the chain.
api
zed: (Promise, ...Function(Value) => Promise|Value) => LazyPromise
The first argument is any Promises/A+ compatible thenable. Most commonly, it will be a Promise or a LazyPromise. The rest of the arguments are the functions to chain in series order. The functions will not attach .then
listeners until the resultant LazyPromise is forced, thus preserving lazy evaluation if the upstream promise is lazy.
installation
$ npm install zed
running the tests
from project root:
$ npm install
$ npm test
contributors
- jden jason@denizac.org
license
MIT. (c) 2013 jden jason@denizac.org. See LICENSE.md