Extends Class

-const EventEmitter = require('events');
-const emitter = new EventEmitter();
+const Logger = require('./logger');
+const logger = new Logger();
 
-// Register a listener
-emitter.on('messageLogged', (arg) => {
+logger.on('messageLogged', (arg) => {
     console.log('Listener called',arg);
 });
 
-const log = require('./logger');
-log('message');
-
-
-
-
-
+logger.log('message');

 const EventEmitter = require('events');
-const emitter = new EventEmitter();
 var url = 'http:mylogger.io/log';
 
-function log(message) {
-    // Send an HTTP request
-    console.log(message);
-    emitter.emit('messageLogged', {id: 1, url: 'http://' });
-}
-
-
-
+// function in class won't need function keyword
+class Logger extends EventEmitter {
+    log(message) {
+        // Send an HTTP request
+        console.log(message);
 
+        //Raise an event
+        this.emit('messageLogged', {id: 1, url: 'http://' });
+    }
+}
 
-module.exports = log;
+module.exports = Logger;