Evented.js 270 Bytes
//>>built
define(["./aspect","./on"],function(e,c){function a(){}var f=e.after;a.prototype={on:function(a,d){return c.parse(this,a,d,function(b,a){return f(b,"on"+a,d,!0)})},emit:function(a,d){var b=[this];b.push.apply(b,arguments);return c.emit.apply(c,b)}};return a});