metal-promise
/*!
* Promises polyfill from Google's Closure Library in ES6.
*
* Copyright 2013 The Closure Library Authors. All Rights Reserved.
*
* Promise support is not ready on all supported browsers,
* therefore core.js is temporarily using Google's promises as polyfill. It
* supports cancellable promises and has clean and fast implementation.
*/
Use
Simple use case
; { ;};
Progress tracking
In addition to Google Closure's implementation of Promise,
the ProgressPromise
class is also provided for tracking the progress of an
async process.
; { ; ; ; ; ;};
Note that the progress
function must be invoked with a number
between 0
and 1
.
; // TypeError: The progress percentage should be a number between 0 and 1
It also cannot be invoked with a smaller number than the previous call.
;; // Error: The progress percentage can't be lower than the previous percentage
Advanced use cases
To see more advanced documentation, please visit Google Closure Library's documentation;
Setup
-
Install a recent release of NodeJS if you don't have it yet.
-
Install local dependencies:
npm install
- Run the tests:
npm test
Contributing
Check out the contributing guidelines for more information.