https://github.com/iminside/js.event_emitter

Event emitter for es6 classes
https://github.com/iminside/js.event_emitter

Last synced: 1 day ago
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Event emitter for es6 classes

• Host: GitHub
• URL: https://github.com/iminside/js.event_emitter
• Owner: iminside
• Created: 2015-09-15T06:28:38.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-09-22T08:21:10.000Z (over 9 years ago)
• Last Synced: 2024-12-08T08:34:41.999Z (19 days ago)
• Language: JavaScript
• Homepage:
• Size: 137 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
### Install

```

npm install js.event_emitter --save

```

### Usage

```javascript

import EventEmitter from "js.event_emitter";

class Cat extends EventEmitter {}

class Dog extends EventEmitter {

	constructor(){ 

		this.name = "Bob";

	}

	gav(){ 

		console.log( this.name + " gav" ); 

	}

	manyGav(){ 

		console.log( this.name + " gav gav gav" ); 

	}

}

let dog = new Dog,

    cat = new Cat;

  

cat.on(                              // attach event handler, call on every trigger

	"run",                           // event name

	dog.gav,                         // event handler

	dog                              // callback context

);

cat.one( "run", dog.manyGav, dog );  // call on first trigger

cat.trigger( "run" );                // > "Bob gav"

                                     // > "Bob gav gav gav"

cat.trigger( "run" );                // > "Bob gav"

cat.trigger( "run" );                // > "Bob gav"

cat.off();                           // detach all handlers of all events

cat.off( "run" );                    // detach all handlers of "run" event

cat.off( "run", dog.gav );           // detach dog.gav handler of "run" event

cat.off( "run", dog.gav, dog );      // detach dog.gav handler of "run" event when context is dog

```