Asynchronous cancelable (or not) EventEmitter-like object
An EventEmitter replacement that allows the library to make events cancelable by the event handlers and allows event handlers to be synchronous or asynchronous.
npm install async-cancelable-events
var EventEmitter = require'async-cancelable-events';
The API is intented to be a mostly-drop-in replacement for Node.js' EventEmitter object, with a little bit of DOM Events and more asynchronicity sprinkled in.
The primary differences between the EventEmitter and async-cancelable-events are:
this.emitis a function, it is assumed to be a callback that accepts a boolean indicating whether to continue the event (
true) or cancel it (
.oncemethods try to "guess" if the provided handler is synchronous or asynchronous (based on its argument length), or can be explicitly registered as synchronous or asynchronous with
.addListenerwas a thing? I didn't. It's just a synonmym for
.on, by the way.
foo.on('bar', func1).on('baz', func2)is valid.
Copyright (C) 2012-2013 by David Ellis
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