11e48409bb
Core module has been initialized, as well as a default flavor. Minor changes (read DEVLOG), moved things around, cleaned up some things and built some of the basic features.
2.1 KiB
2.1 KiB
lie
[](https://travis-ci.org/calvinmetcalf/lie)
lie a small, performant, promise library implementing the Promises/A+ spec Version 1.1.
A originally a fork of Ruben Verborgh's library called promiscuous, version 2.6 and above are forked from ayepromise by Chris Burgmer.
npm install lie
var Promise = require('lie');
// or use the pollyfill
require('lie/polyfill');
Usage
Either use it with browserify (recommended) or grab one of the files from the dist folder
- lie.js/lie.min.js makes 'Promise' available in global scope (or since it's a UMD
Promisewill be available through a CJS or AMD loader if it's available instead) - lie.polyfill.js/lie.polyfill.min.js adds 'Promise' to the global scope only if it's not already defined (not a UMD).
API
Implements the standard ES6 api,
new Promise(function(resolve, reject){
doSomething(function(err, result) {
if (err) {
reject(err);
} else {
resolve(result);
}
});
}).then(function (value) {
//on success
}, function (reason) {
//on error
}).catch(function (reason) {
//shortcut for error handling
});
Promise.all([
//array of promises or values
]).then(function ([/* array of results */]));
Promise.race([
//array of promises or values
]);
// either resolves or rejects depending on the first value to do so
Unhandled Rejections
In node lie emits unhandledRejection events when promises are not handled in
line with how iojs does so
meaning it can act as promise shim in node as well as the browser.