vsnegovik/js-simple-events

Yet another simple event management system

js-simple-events

Yet another simple event management system

npm i -S js-simple-events

About

This is just a simple class that helps to manage events in a simple way without dependencies. It also supports TypeScript!

And it's really light - <1kb in size!

Methods

Method	Params	Description
emit	event, payload	Emit the event with the given payload.
fire	event, payload	Alias for emit
on	event, callback	Listen for the event with the given callback.
listen	event, callback	Alias for on
once	event, callback	Listen for the event once, after handling - remove the listener.
off	event, callback	Remove event listener(s) for the event.
remove	event, callback	Alias for off

Examples

// Import and initialize
import EventManager from 'js-simple-events'

const eventManager = new EventManager();


// Define handlers
const eventHandler = (payload) => console.log('Yay, events work!', payload);

eventManager.on('test', eventHandler);
eventManager.once('test', () => console.log('This will be called just once!'));

// Emit events
eventManager.emit('test', 'Hello!');
// -> Yay, events work! Hello!
// -> This will be called just once!

eventManager.emit('test', 'Hello!');
// -> Yay, events work! Hello!
// (The 'once' handler isn't fired)

Plugins

For Vue.js