How to use the fbemitter.EventEmitter function in fbemitter

import React, { Component } from 'react';
import { 
		 ListView,
		 StyleSheet, 
		 TouchableOpacity, 
		 Text,
		 View,
		} from 'react-native';

import styles from '../styles/menu';

import { Toolbar } from 'react-native-material-design';

import { EventEmitter } from 'fbemitter';

let _emitter = new EventEmitter();

// A particular View Component
class PastOrders extends Component {

// rendering Veiw
	render() {
		return (
			
		);
	}

'use strict'

import React, { Component } from 'react';
import { 
		 StyleSheet, 
		 TouchableOpacity, 
		 Text,
		 View,
		} from 'react-native';

import styles from '../styles/menu';
import { Toolbar } from 'react-native-material-design';

import { EventEmitter } from 'fbemitter';

let _emitter = new EventEmitter();

// A particular View Component
class Notifications extends Component {

	constructor(props) {
	  super(props);
	
	  this.state = {};
	}

// rendering Veiw
	render() {
		return (

// @flow
import { EventEmitter } from 'fbemitter';

const emitter = new EventEmitter();

export default emitter;

it('returns an array of function', function () {
             var e = new EventEmitter();

             function foo() {}

             e.addListener('foo', foo);
             assert.strictEqual(e.listeners('foo') instanceof Array, true);
             assert.strictEqual(e.listeners('foo').length, 1);
             console.log(e.listeners('foo')[0]);
             assert.strictEqual(e.listeners('foo')[0], foo);
        });

it('emits to all event listeners', function () {
            var e = new EventEmitter()
                , pattern: string[] = [];

            e.addListener('foo', function () {
                pattern.push('foo1');
            });

            e.addListener('foo', function () {
                pattern.push('foo2');
            });

            e.emit('foo');

            assert.strictEqual(pattern.join(';'), 'foo1;foo2');
        });

it('emits with different contexts', function () {
            var e = new EventEmitter()
                , pattern = '';

            function writer() {
                pattern += this;
            }

            e.addListener('write', writer, 'foo');
            e.addListener('write', writer, 'baz');
            e.once('write', writer, 'bar');
            e.once('write', writer, 'banana');

            e.emit('write');
            assert.strictEqual(pattern, 'foobazbarbanana');
        });

it('emits with context', function (done) {
            var context = { bar: 'baz' }
                , e = new EventEmitter();

            e.addListener('foo', function (bar: string) {
                assert.strictEqual(bar, 'bar');
                assert.strictEqual(this, context);

                done();
            }, context);

            e.emit('foo', 'bar');
        });

import { appbaseService } from '../service/AppbaseService';
import { AppOwner } from '../shared/SharedComponents';

const { EventEmitter } = require('fbemitter');

const eventEmitter = new EventEmitter();

class AppDashboard {
	constructor() {
		this.allowedView = ['dashboard', 'search-sandbox', 'browser', 'mappings', 'builder', 'credentials', 'team', 'analytics'];
	}
	onEnter(activeApp, currentView) {
		const appObj = {
			activeApp,
			currentView,
		};
		appbaseService.setExtra('nav', appObj);
		eventEmitter.emit('activeApp', appObj);
		localStorage.setItem('appbaseDashboardApp', activeApp);
	}
	onLeave() {
		eventEmitter.emit('activeApp', {

const { EventEmitter } = require('fbemitter');

const eventEmitter = new EventEmitter();
import { appbaseService } from '../service/AppbaseService';
import { AppOwner } from '../shared/SharedComponents';

class AppDashboard {
	constructor() {
		this.allowedView = ['dashboard', 'browser', 'mappings', 'builder', 'credentials', 'team'];
	}
	onEnter(activeApp, currentView) {
		const appObj = {
			activeApp,
			currentView,
		};
		appbaseService.setExtra('nav', appObj);
		eventEmitter.emit('activeApp', appObj);
		localStorage.setItem('appbaseDashboardApp', activeApp);
	}

function _getEmitter(): EventEmitter {
  if (!_emitter) {
    _emitter = new EventEmitter();
    DeviceEventEmitter.addListener('Exponent.nativeUpdatesEvent', _emitEvent);
  }
  return _emitter;
}