Promises for people afraid of commitment.
npm install maybe-polyfillPromises for those afraid of commitment. Maybe can be used just like Promise.
npm install maybe-polyfill
$3
bower install maybe-polyfill
Simple use
js
var mayb = new Maybe(function(resolve, reject) {
// do a thing, possibly async, then… if (/ everything turned out fine /) {
resolve("Stuff worked!");
} else {
reject(new Error("It broke"));
}
});
// Do something when async done
maybe.then(function() {
...
});
`Performance
By default maybe-polyfill uses , but falls back to setTimeout for executing asynchronously. If a browser does not support setImmediate (IE/Edge are the only browsers with setImmediate), you may see performance issues.
Use a setImmediate polyfill to fix this issue. setAsap or setImmediate work well.If you polyfill
window.setImmediate or use Maybe._setImmediateFn(immedateFn) it will be used instead of window.setTimeout
npm install setasap --save
js
var Maybe = require('maybe-polyfill');
var setAsap = require('setasap');
Maybe._setImmediateFn(setAsap);
`Unhandled Rejections
maybe-polyfill will warn you about possibly unhandled rejections. It will show a console warning if a Maybe is rejected, but no is used. You can turn off this behavior by setting Maybe._setUnhandledRejectionFn(.
If you would like to disable unhandled rejections. Use a noop like below.
`js
Maybe._setUnhandledRejectionFn(function(rejectError) {});
`
Testing
npm install
npm test