Global object should be equal to the parent object.

.gitignore

@@ -1,3 +1,4 @@
 /docs/data.json
 /docs/api.dust.js
-/node_modules/
+/node_modules/
+.DS_Store

EventEmitter.js

@@ -339,7 +339,7 @@
 				while (i--) {
 					// If the listener returns true then it shall be removed from the event
 					// The function is executed either with a basic call or an apply if there is an args array
-					response = args ? listeners[key][i].apply(null, args) : listeners[key][i]();
+					response = listeners[key][i].apply(this, args || []);
 					if (response === true) {
 						this.removeListener(evt, listeners[key][i]);
 					}

tests/tests.js

@@ -382,6 +382,15 @@
 			ee.emitEvent(/ba[rz]/);
 			assert.strictEqual(count, 2);
 		});
+
+		test('global object is defined', function()
+		{
+			ee.addListener('foo', function() {
+				assert.equal(this, ee);
+			});
+
+			ee.emitEvent('foo');
+		});
 	});
 
 	suite('manipulateListeners', function() {