gistfile1.js

def(emi.prototype, "emit", function(event){
	var listeners = this._listeners, events, off = []
	this.off = function(_event, fn){
		if (_event == event) off.push(fn)
		else emi.prototype.off.call(this, _event, fn)
		return this
	};
	if (listeners && (events = listeners[event])){
		var args = Array.prototype.slice.call(arguments, 1)
		for (var i = 0, l = events.length; i < l; i++) events[i].apply(null, args)
	}
	delete this.off
	for (var ii = 0, ll = off.length; ii < ll; ii++) this.off(event, off[ii])
	return this
})