amEventEmitter

Custom Quick & Easy Java Script Event Emitter no need of any third party library. From this you register multiple events with call back function & can be able to emit event multiple times with data. And pragmatically mute & unmute event which you created.

Installation

Download am.emmiter.js file from this repo and import am.emmiter.js file in you project

<script src="am.emmiter.js"></script>

Or do

npm install am-event-emmiter

Examples

Refer index.html in this repo

Features & Usage

Step1: Create Instance

var eventEmitter = new amEventEmitter();

Step2: Register your custom event with Event Name & Callback

eventEmitter.register('event1', function(){
  console.log('Event1 emitted');
});

Step3: Emit your event.

eventEmitter.emit('event1');

consoles Event1 emitted

More Options

Emitting with data

eventEmitter.register('event2', function(data){
  console.log('event2 emitted with data',data);
});

eventEmitter.emit('event2',{'name' : 'Jhon Potter'});

Multiple register to same event

eventEmitter.register('event3', function(data){
  console.log('event3 emitted!! first register',data);
});

eventEmitter.register('event3', function(data){
  console.log('event3 emitted!! second register',data);
});

eventEmitter.emit('event3',{'name' : 'Jhon Potter'});

Emitting single event multiple times with different data

eventEmitter.register('event4', function(data){
  console.log('event4 emitted!! ',data);
});
eventEmitter.emit('event4',{'name' : 'Jhon Potter'});  
eventEmitter.emit('event4',{'name' : 'Harry Potter'});  

Mutting & UnMutting event. call mute method to disable event emit & call unmute method to enable back

eventEmitter.register('event5', function(data){
  console.log('event5 emitted!! ',data);
});
eventEmitter.emit('event5',{'name' : 'Jhon Potter'});  
eventEmitter.mute('event5');
eventEmitter.emit('event5',{'name' : 'Harry Potter'});  
eventEmitter.unmute('event5');
eventEmitter.emit('event5',{'name' : 'Mark welson'}); 

Exception handling

Wrap register, emit, mute and unmute method with try & catch block.

try{
  eventEmitter.register('event4', function(data){
    console.log('event4 emitted!! ',data);
  });
} catch(e){
  console.log('Error',e);
}