### Event Manager Class

```js

var EventsManagerClass = function() {

    /**
     * Store events callback and context.
     *
     * @ver Object
     */
    var events = {}

    /**
     * Register an event callback.
     *
     * @param  string    event
     * @param  function  callback
     * @param  object    bind
     * @return EventsManagerClass
     */
    this.on = function(event, callback, bind) {
        if (bind) {
            callback = callback.bind(bind)
        }
        if (!events[event]) {
            events[event] = []
        }
        events[event].push(callback)
        return this
    }

    /**
     * Remove an event.
     *
     * @param  string    event
     * @param  function  callback
     * @return EventsManagerClass
     */
    this.off = function(event, callback) {
        if (!callback) {
            events[event] = []
            return this
        }
        events[event].filter(function(fn) {
            if (fn !== callback) {
                return fn;
            }
        })
        return this
    }

    /**
     * Trigger an event.
     *
     * @return mixed
     */
    this.trigger = function() {
        var args = Array.prototype.slice.call(arguments, 1);
        let event = arguments[0]
        if (!events[event]) {
            return false
        }
        events[event].forEach(function(fn) {
            fn.apply(this, args)
        })
        return events[event].length
    }

}

```

### Event Manager Factory

```js
/**
 * Event Manager Factory.
 *
 * @return EventsManagerClass
 */
function EventsManager() {
    return new EventsManagerClass()
}
```

### Person Class.

```js
/**
 * Person class.
 *
 * @param  string  _name
 * @param  EventsManagerClass  _eventManager
 */
function Person(_name, _eventManager) {
    this.foods = []
    this.name = _name
    this.eventManager = _eventManager
}
```

### Log Food Function


```js
// Adding `.bind(this)`
this.foods.forEach(function(item) {
    console.log("I'm " + this.name + "and I ate " + item);
}.bind(this));
```

```js
// Set a "global" var.
var that = this
this.foods.forEach(function(item) {
    console.log("I'm " + that.name + "and I ate " + item);
});
```

```js
// Use arrow function
this.foods.forEach((item) => {
    console.log("I'm " + this.name + "and I ate " + item);
});
```

### Log results to HTML File

```js
console.log = function() {
    var args = Array.prototype.slice.call(arguments, 1);
    document.write('<strong>' + arguments[0] + '</strong> ')
    document.write(args.join(','))
    document.write('<br />')
}
```